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https://github.com/uhub/awesome-c

A curated list of awesome C frameworks, libraries and software.
https://github.com/uhub/awesome-c

List: awesome-c

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A curated list of awesome C frameworks, libraries and software.

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# awesome-c



A curated list of awesome C frameworks, libraries and software.



* [Genymobile/scrcpy](https://github.com/Genymobile/scrcpy) - Display and control your Android device

* [obsproject/obs-studio](https://github.com/obsproject/obs-studio) - OBS Studio - Free and open source software for live streaming and screen recording

* [git/git](https://github.com/git/git) - Git Source Code Mirror - This is a publish-only repository but pull requests can be turned into patches to the mailing list via GitGitGadget (https://gitgitgadget.github.io/). Please follow Documentation/SubmittingPatches procedure for any of your improvements.

* [FFmpeg/FFmpeg](https://github.com/FFmpeg/FFmpeg) - Mirror of https://git.ffmpeg.org/ffmpeg.git

* [curl/curl](https://github.com/curl/curl) - A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

* [mpv-player/mpv](https://github.com/mpv-player/mpv) - 🎥 Command line video player

* [nothings/stb](https://github.com/nothings/stb) - stb single-file public domain libraries for C/C++

* [ggreer/the_silver_searcher](https://github.com/ggreer/the_silver_searcher) - A code-searching tool similar to ack, but faster.

* [raysan5/raylib](https://github.com/raysan5/raylib) - A simple and easy-to-use library to enjoy videogames programming

* [SamyPesse/How-to-Make-a-Computer-Operating-System](https://github.com/SamyPesse/How-to-Make-a-Computer-Operating-System) - How to Make a Computer Operating System in C++

* [hashcat/hashcat](https://github.com/hashcat/hashcat) - World's fastest and most advanced password recovery utility

* [radareorg/radare2](https://github.com/radareorg/radare2) - UNIX-like reverse engineering framework and command-line toolset

* [jarun/nnn](https://github.com/jarun/nnn) - n³ The unorthodox terminal file manager

* [TheAlgorithms/C](https://github.com/TheAlgorithms/C) - Collection of various algorithms in mathematics, machine learning, computer science, physics, etc implemented in C for educational purposes.

* [allinurl/goaccess](https://github.com/allinurl/goaccess) - GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.

* [jart/cosmopolitan](https://github.com/jart/cosmopolitan) - build-once run-anywhere c library

* [qmk/qmk_firmware](https://github.com/qmk/qmk_firmware) - Open-source keyboard firmware for Atmel AVR and Arm USB families

* [karpathy/llama2.c](https://github.com/karpathy/llama2.c) - Inference Llama 2 in one file of pure C

* [lvgl/lvgl](https://github.com/lvgl/lvgl) - Embedded graphics library to create beautiful UIs for any MCU, MPU and display type.

* [skywind3000/kcp](https://github.com/skywind3000/kcp) - :zap: KCP - A Fast and Reliable ARQ Protocol

* [reactos/reactos](https://github.com/reactos/reactos) - A free Windows-compatible Operating System

* [videolan/vlc](https://github.com/videolan/vlc) - VLC media player - All pull requests are ignored, please use MRs on https://code.videolan.org/videolan/vlc

* [sumatrapdfreader/sumatrapdf](https://github.com/sumatrapdfreader/sumatrapdf) - SumatraPDF reader

* [vurtun/nuklear](https://github.com/vurtun/nuklear) - A single-header ANSI C gui library

* [acidanthera/OpenCorePkg](https://github.com/acidanthera/OpenCorePkg) - OpenCore bootloader

* [davatorium/rofi](https://github.com/davatorium/rofi) - Rofi: A window switcher, application launcher and dmenu replacement

* [systemd/systemd](https://github.com/systemd/systemd) - The systemd System and Service Manager

* [s-matyukevich/raspberry-pi-os](https://github.com/s-matyukevich/raspberry-pi-os) - Learning operating system development using Linux kernel and Raspberry Pi

* [glfw/glfw](https://github.com/glfw/glfw) - A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input

* [jonas/tig](https://github.com/jonas/tig) - Text-mode interface for git

* [jedisct1/libsodium](https://github.com/jedisct1/libsodium) - A modern, portable, easy to use crypto library.

* [coturn/coturn](https://github.com/coturn/coturn) - coturn TURN server project

* [libevent/libevent](https://github.com/libevent/libevent) - Event notification library

* [FreeRDP/FreeRDP](https://github.com/FreeRDP/FreeRDP) - FreeRDP is a free remote desktop protocol library and clients

* [DaveGamble/cJSON](https://github.com/DaveGamble/cJSON) - Ultralightweight JSON parser in ANSI C

* [andlabs/libui](https://github.com/andlabs/libui) - Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.

* [citusdata/citus](https://github.com/citusdata/citus) - Distributed PostgreSQL as an extension

* [DoctorWkt/acwj](https://github.com/DoctorWkt/acwj) - A Compiler Writing Journey

* [fogleman/Craft](https://github.com/fogleman/Craft) - A simple Minecraft clone written in C using modern OpenGL (shaders).

* [lz4/lz4](https://github.com/lz4/lz4) - Extremely Fast Compression algorithm

* [libretro/RetroArch](https://github.com/libretro/RetroArch) - Cross-platform, sophisticated frontend for the libretro API. Licensed GPLv3.

* [openwall/john](https://github.com/openwall/john) - John the Ripper jumbo - advanced offline password cracker, which supports hundreds of hash and cipher types, and runs on many operating systems, CPUs, GPUs, and even some FPGAs

* [phpredis/phpredis](https://github.com/phpredis/phpredis) - A PHP extension for Redis

* [krallin/tini](https://github.com/krallin/tini) - A tiny but valid `init` for containers

* [rswier/c4](https://github.com/rswier/c4) - C in four functions

* [libvips/libvips](https://github.com/libvips/libvips) - A fast image processing library with low memory needs.

* [rui314/chibicc](https://github.com/rui314/chibicc) - A small C compiler

* [libgit2/libgit2](https://github.com/libgit2/libgit2) - A cross-platform, linkable library implementation of Git that you can use in your application.

* [cstack/db_tutorial](https://github.com/cstack/db_tutorial) - Writing a sqlite clone from scratch in C

* [Tencent/xLua](https://github.com/Tencent/xLua) - xLua is a lua programming solution for  C# ( Unity, .Net, Mono) , it supports android, ios, windows, linux, osx, etc.

* [Immediate-Mode-UI/Nuklear](https://github.com/Immediate-Mode-UI/Nuklear) - A single-header ANSI C immediate mode cross-platform GUI library

* [Cyan4973/xxHash](https://github.com/Cyan4973/xxHash) - Extremely fast non-cryptographic hash algorithm

* [microsoft/react-native-code-push](https://github.com/microsoft/react-native-code-push) - React Native module for CodePush

* [jgamblin/Mirai-Source-Code](https://github.com/jgamblin/Mirai-Source-Code) - Leaked Mirai Source Code for Research/IoC Development Purposes

* [pymumu/smartdns](https://github.com/pymumu/smartdns) - A local DNS server to obtain the fastest website IP for the best Internet experience, support DoT, DoH. 一个本地DNS服务器，获取最快的网站IP，获得最佳上网体验，支持DoH，DoT。

* [pocoproject/poco](https://github.com/pocoproject/poco) - The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems.

* [Wind4/vlmcsd](https://github.com/Wind4/vlmcsd) - KMS Emulator in C (currently runs on Linux including Android, FreeBSD, Solaris, Minix, Mac OS, iOS, Windows with or without Cygwin)

* [capstone-engine/capstone](https://github.com/capstone-engine/capstone) - Capstone disassembly/disassembler framework for ARM, ARM64 (ARMv8), Alpha, BPF, Ethereum VM, HPPA, LoongArch, M68K, M680X, Mips, MOS65XX, PPC, RISC-V(rv32G/rv64G), SH, Sparc, SystemZ, TMS320C64X, TriCore, Webassembly, XCore and X86.

* [pygame/pygame](https://github.com/pygame/pygame) - 🐍🎮 pygame (the library) is a Free and Open Source python programming language library for making multimedia applications like games built on top of the excellent SDL library. C, Python, Native, OpenGL.

* [peng-zhihui/L-ink_Card](https://github.com/peng-zhihui/L-ink_Card) - Smart NFC & ink-Display Card

* [liuliu/ccv](https://github.com/liuliu/ccv) - C-based/Cached/Core Computer Vision Library, A Modern Computer Vision Library

* [floooh/sokol](https://github.com/floooh/sokol) - minimal cross-platform standalone C headers

* [veracrypt/VeraCrypt](https://github.com/veracrypt/VeraCrypt) - Disk encryption with strong security based on TrueCrypt

* [stanfordnlp/GloVe](https://github.com/stanfordnlp/GloVe) - Software in C and data files for the popular GloVe model for distributed word representations, a.k.a. word vectors or embeddings

* [Kitware/CMake](https://github.com/Kitware/CMake) - Mirror of CMake upstream repository

* [orangeduck/Cello](https://github.com/orangeduck/Cello) - Higher level programming in C

* [ithewei/libhv](https://github.com/ithewei/libhv) - 🔥 比libevent/libuv/asio更易用的网络库。A c/c++ network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT client/server.

* [libimobiledevice/libimobiledevice](https://github.com/libimobiledevice/libimobiledevice) - A cross-platform protocol library to communicate with iOS devices

* [universal-ctags/ctags](https://github.com/universal-ctags/ctags) - A maintained ctags implementation

* [htop-dev/htop](https://github.com/htop-dev/htop) - htop - an interactive process viewer

* [SanderMertens/flecs](https://github.com/SanderMertens/flecs) - A fast entity component system (ECS) for C & C++

* [NVIDIA/cuda-samples](https://github.com/NVIDIA/cuda-samples) - Samples for CUDA Developers which demonstrates features in CUDA Toolkit

* [hfiref0x/UACME](https://github.com/hfiref0x/UACME) - Defeating Windows User Account Control

* [yanfeizhang/coder-kung-fu](https://github.com/yanfeizhang/coder-kung-fu) - 开发内功修炼

* [nodejs/http-parser](https://github.com/nodejs/http-parser) - http request/response parser for c

* [redis/hiredis](https://github.com/redis/hiredis) - Minimalistic C client for Redis >= 1.2

* [microsoft/WinObjC](https://github.com/microsoft/WinObjC) - Objective-C for Windows

* [hrvach/deskhop](https://github.com/hrvach/deskhop) - Fast Desktop Switching Device

* [rui314/8cc](https://github.com/rui314/8cc) - A Small C Compiler

* [klange/toaruos](https://github.com/klange/toaruos) - A completely-from-scratch hobby operating system: bootloader, kernel, drivers, C library, and userspace including a composited graphical UI, dynamic linker, syntax-highlighting text editor, network stack, etc.

* [peng-zhihui/HoloCubic](https://github.com/peng-zhihui/HoloCubic) - 带网络功能的伪全息透明显示桌面站

* [yourtion/30dayMakeOS](https://github.com/yourtion/30dayMakeOS) - 《30天自制操作系统》源码中文版。自己制作一个操作系统（OSASK）的过程

* [lpereira/lwan](https://github.com/lpereira/lwan) - Experimental, scalable, high performance HTTP server

* [fluent/fluent-bit](https://github.com/fluent/fluent-bit) - Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX and Windows

* [hishamhm/htop](https://github.com/hishamhm/htop) - htop is an interactive text-mode process viewer for Unix systems. It aims to be a better 'top'.

* [neutrinolabs/xrdp](https://github.com/neutrinolabs/xrdp) - xrdp: an open source RDP server

* [ldcsaa/HP-Socket](https://github.com/ldcsaa/HP-Socket) - High Performance TCP/UDP/HTTP Communication Component

* [ravynsoft/ravynos](https://github.com/ravynsoft/ravynos) - A BSD-based OS project that aims to provide source and binary compatibility with macOS® and a similar user experience.

* [grbl/grbl](https://github.com/grbl/grbl) - An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino

* [cmus/cmus](https://github.com/cmus/cmus) - Small, fast and powerful console music player for Unix-like operating systems.

* [CameraKit/camerakit-android](https://github.com/CameraKit/camerakit-android) - Library for Android Camera 1 and 2 APIs. Massively increase stability and reliability of photo and video capture on all Android devices.

* [libusb/libusb](https://github.com/libusb/libusb) - A cross-platform library to access USB devices

* [dokan-dev/dokany](https://github.com/dokan-dev/dokany) - User mode file system library for windows with FUSE Wrapper

* [swiftlang/swift-corelibs-foundation](https://github.com/swiftlang/swift-corelibs-foundation) - The Foundation Project, providing core utilities, internationalization, and OS independence

* [jagt/clumsy](https://github.com/jagt/clumsy) - clumsy makes your network condition on Windows significantly worse, but in a controlled and interactive manner.

* [kornelski/pngquant](https://github.com/kornelski/pngquant) - Lossy PNG compressor — pngquant command based on libimagequant library

* [cjdelisle/cjdns](https://github.com/cjdelisle/cjdns) - An encrypted IPv6 network using public-key cryptography for address allocation and a distributed hash table for routing.

* [RIOT-OS/RIOT](https://github.com/RIOT-OS/RIOT) - RIOT -  The friendly OS for IoT

* [antirez/sds](https://github.com/antirez/sds) - Simple Dynamic Strings library for C

* [tboox/tbox](https://github.com/tboox/tbox) - 🎁 A glib-like multi-platform c library

* [clibs/clib](https://github.com/clibs/clib) - Package manager for the C programming language.

* [nbs-system/naxsi](https://github.com/nbs-system/naxsi) - NAXSI is an open-source, high performance, low rules maintenance WAF for NGINX

* [warmcat/libwebsockets](https://github.com/warmcat/libwebsockets) - canonical libwebsockets.org networking library

* [gluster/glusterfs](https://github.com/gluster/glusterfs) - Gluster Filesystem : Build your distributed storage in minutes

* [lxc/lxc](https://github.com/lxc/lxc) - LXC - Linux Containers

* [tianocore/edk2](https://github.com/tianocore/edk2) - EDK II

* [dunst-project/dunst](https://github.com/dunst-project/dunst) - Lightweight and customizable notification daemon

* [CloverHackyColor/CloverBootloader](https://github.com/CloverHackyColor/CloverBootloader) - Bootloader for macOS, Windows and Linux in UEFI and in legacy mode

* [aws/s2n-tls](https://github.com/aws/s2n-tls) - An implementation of the TLS/SSL protocols

* [laruence/yaf](https://github.com/laruence/yaf) - Fast php framework written in c, built in php extension

* [Cisco-Talos/clamav](https://github.com/Cisco-Talos/clamav) - ClamAV - Documentation is here: https://docs.clamav.net

* [nanopb/nanopb](https://github.com/nanopb/nanopb) - Protocol Buffers with small code size

* [ultrajson/ultrajson](https://github.com/ultrajson/ultrajson) - Ultra fast JSON decoder and encoder written in C with Python bindings

* [marcobambini/gravity](https://github.com/marcobambini/gravity) - Gravity Programming Language

* [RandyGaul/cute_headers](https://github.com/RandyGaul/cute_headers) - Collection of cross-platform one-file C/C++ libraries with no dependencies, primarily used for games

* [coreutils/coreutils](https://github.com/coreutils/coreutils) - upstream mirror

* [karlstav/cava](https://github.com/karlstav/cava) - Cross-platform Audio Visualizer

* [kokke/tiny-AES-c](https://github.com/kokke/tiny-AES-c) - Small portable AES128/192/256 in C

* [martanne/vis](https://github.com/martanne/vis) - A vi-like editor based on Plan 9's structural regular expressions

* [attractivechaos/klib](https://github.com/attractivechaos/klib) - A standalone and lightweight C library

* [Netflix/dynomite](https://github.com/Netflix/dynomite) - A generic dynamo implementation for different k-v storage engines

* [firmianay/CTF-All-In-One](https://github.com/firmianay/CTF-All-In-One) - CTF竞赛权威指南

* [troydhanson/uthash](https://github.com/troydhanson/uthash) - C macros for hash tables and more

* [y123456yz/reading-code-of-nginx-1.9.2](https://github.com/y123456yz/reading-code-of-nginx-1.9.2) - nginx-1.9.2源码通读分析注释，带详尽函数中文分析注释以及相关函数流程调用注释，最全面的nginx源码阅读分析中文注释，更新完毕

* [zpoint/CPython-Internals](https://github.com/zpoint/CPython-Internals) - Dive into CPython internals, trying to illustrate every detail of CPython implementation

* [lc-soft/LCUI](https://github.com/lc-soft/LCUI) - C library for building user interfaces

* [Facico/Chinese-Vicuna](https://github.com/Facico/Chinese-Vicuna) - Chinese-Vicuna: A Chinese Instruction-following LLaMA-based Model —— 一个中文低资源的llama+lora方案，结构参考alpaca

* [xiph/rnnoise](https://github.com/xiph/rnnoise) - Recurrent neural network for audio noise reduction

* [plasma-umass/coz](https://github.com/plasma-umass/coz) - Coz: Causal Profiling

* [ThrowTheSwitch/Unity](https://github.com/ThrowTheSwitch/Unity) - Simple Unit Testing for C

* [dvorka/hstr](https://github.com/dvorka/hstr) - bash and zsh shell history suggest box - easily view, navigate, search and manage your command history.

* [gnea/grbl](https://github.com/gnea/grbl) - An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino

* [openvenues/libpostal](https://github.com/openvenues/libpostal) - A C library for parsing/normalizing street addresses around the world. Powered by statistical NLP and open geo data.

* [mackron/miniaudio](https://github.com/mackron/miniaudio) - Audio playback and capture library written in C, in a single source file.

* [microsoft/msquic](https://github.com/microsoft/msquic) - Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.

* [lotabout/write-a-C-interpreter](https://github.com/lotabout/write-a-C-interpreter) - Write a simple interpreter of C. Inspired by c4 and largely based on it.

* [abishekvashok/cmatrix](https://github.com/abishekvashok/cmatrix) - Terminal based "The Matrix" like implementation

* [acassen/keepalived](https://github.com/acassen/keepalived) - Keepalived

* [RubyMetric/chsrc](https://github.com/RubyMetric/chsrc) - chsrc 全平台通用换源工具与框架. Change Source everywhere for every software

* [cmusphinx/pocketsphinx](https://github.com/cmusphinx/pocketsphinx) - A small speech recognizer

* [3proxy/3proxy](https://github.com/3proxy/3proxy) - 3proxy - tiny free proxy server

* [Mzzopublic/C](https://github.com/Mzzopublic/C) - C语言

* [Dav1dde/glad](https://github.com/Dav1dde/glad) - Multi-Language Vulkan/GL/GLES/EGL/GLX/WGL Loader-Generator based on the official specs.

* [armink/EasyLogger](https://github.com/armink/EasyLogger) - An ultra-lightweight(ROM<1.6K, RAM<0.3k), high-performance C/C++ log library. | 一款超轻量级(ROM<1.6K, RAM<0.3k)、高性能的 C/C++ 日志库

* [mortdeus/legacy-cc](https://github.com/mortdeus/legacy-cc) - The earliest versions of the very first c compiler known to exist in the wild written by the late legend himself dmr.

* [iqiyi/xCrash](https://github.com/iqiyi/xCrash) - 🔥 xCrash provides the Android app with the ability to capture java crash, native crash and ANR. No root permission or any system permissions are required.

* [contiki-os/contiki](https://github.com/contiki-os/contiki) - The official git repository for Contiki, the open source OS for the Internet of Things

* [varnishcache/varnish-cache](https://github.com/varnishcache/varnish-cache) - Varnish Cache source code repository

* [jorisvink/kore](https://github.com/jorisvink/kore) - An easy to use, scalable and secure web application framework for writing web APIs in C or Python. || This is a read-only mirror, please see https://kore.io/mail and https://kore.io/source for information on how to contribute via the mailing lists.

* [kangjianwei/Data-Structure](https://github.com/kangjianwei/Data-Structure) - 《数据结构》-严蔚敏.吴伟民-教材源码与习题解析

* [westes/flex](https://github.com/westes/flex) - The Fast Lexical Analyzer - scanner generator for lexing in C and C++

* [dankamongmen/notcurses](https://github.com/dankamongmen/notcurses) - blingful character graphics/TUI library. definitely not curses.

* [cnlohr/rawdrawandroid](https://github.com/cnlohr/rawdrawandroid) - Build android apps without any java, entirely in C and Make

* [shadowsocks/ChinaDNS](https://github.com/shadowsocks/ChinaDNS) - Protect yourself against DNS poisoning in China.

* [philippe44/AirConnect](https://github.com/philippe44/AirConnect) - Use AirPlay to stream to UPnP/Sonos & Chromecast devices

* [janet-lang/janet](https://github.com/janet-lang/janet) - A dynamic language and bytecode vm

* [hnes/libaco](https://github.com/hnes/libaco) - A blazing fast and lightweight C asymmetric coroutine library  💎 ⛅🚀⛅🌞

* [stephane/libmodbus](https://github.com/stephane/libmodbus) - A Modbus library for Linux, Mac OS, FreeBSD and Windows

* [zyantific/zydis](https://github.com/zyantific/zydis) - Fast and lightweight x86/x86-64 disassembler and code generation library

* [remzi-arpacidusseau/ostep-code](https://github.com/remzi-arpacidusseau/ostep-code) - Code from various chapters in OSTEP (http://www.ostep.org)

* [fragglet/c-algorithms](https://github.com/fragglet/c-algorithms) - A library of common data structures and algorithms written in C.

* [aubio/aubio](https://github.com/aubio/aubio) - a library for audio and music analysis

* [neomutt/neomutt](https://github.com/neomutt/neomutt) - ✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat

* [vozlt/nginx-module-vts](https://github.com/vozlt/nginx-module-vts) - Nginx virtual host traffic status module

* [premake/premake-core](https://github.com/premake/premake-core) - Premake

* [mridgers/clink](https://github.com/mridgers/clink) - Bash's powerful command line editing in cmd.exe

* [checkedc/checkedc](https://github.com/checkedc/checkedc) - Checked C is an extension to C that lets programmers write C code with bounds checking and improved type-safety. The goal is to let people easily make their existing C code type-safe and eliminate entire classes of errors.

* [jakogut/tinyvm](https://github.com/jakogut/tinyvm) - TinyVM is a small, fast, lightweight virtual machine written in pure ANSI C.

* [collectd/collectd](https://github.com/collectd/collectd) - The system statistics collection daemon. Please send Pull Requests here!

* [ohler55/oj](https://github.com/ohler55/oj) - Optimized JSON

* [quickjs-zh/QuickJS](https://github.com/quickjs-zh/QuickJS) - QuickJS是一个小型并且可嵌入的Javascript引擎，它支持ES2020规范，包括模块，异步生成器和代理器。

* [Celtoys/Remotery](https://github.com/Celtoys/Remotery) - Single C file, Realtime CPU/GPU Profiler with Remote Web Viewer

* [skeeto/w64devkit](https://github.com/skeeto/w64devkit) - Portable C and C++ Development Kit for x64 (and x86) Windows

* [openssh/openssh-portable](https://github.com/openssh/openssh-portable) - Portable OpenSSH

* [ibireme/yyjson](https://github.com/ibireme/yyjson) - The fastest JSON library in C

* [apache/guacamole-server](https://github.com/apache/guacamole-server) - Mirror of Apache Guacamole Server

* [stellar/stellar-core](https://github.com/stellar/stellar-core) - Reference implementation for the peer-to-peer agent that manages the Stellar network.

* [begeekmyfriend/leetcode](https://github.com/begeekmyfriend/leetcode) - LeetCode in pure C

* [akheron/jansson](https://github.com/akheron/jansson) - C library for encoding, decoding and manipulating JSON data

* [hexchat/hexchat](https://github.com/hexchat/hexchat) - GTK+ IRC client

* [google/honggfuzz](https://github.com/google/honggfuzz) - Security oriented software fuzzer. Supports evolutionary, feedback-driven fuzzing based on code coverage (SW and HW based)

* [containers/crun](https://github.com/containers/crun) - A fast and lightweight fully featured OCI runtime and C library for running containers

* [namhyung/uftrace](https://github.com/namhyung/uftrace) - Function graph tracer for C/C++/Rust/Python

* [sysstat/sysstat](https://github.com/sysstat/sysstat) - Performance monitoring tools for Linux

* [gozfree/gear-lib](https://github.com/gozfree/gear-lib) - Gear-Lib, C library for IOT Embedded Multimedia and Network

* [NetHack/NetHack](https://github.com/NetHack/NetHack) - Official NetHack Git Repository

* [jonashaag/bjoern](https://github.com/jonashaag/bjoern) - A screamingly fast Python 2/3 WSGI server written in C.

* [ivmai/bdwgc](https://github.com/ivmai/bdwgc) - The Boehm-Demers-Weiser conservative C/C++ Garbage Collector (bdwgc, also known as bdw-gc, boehm-gc, libgc)

* [rvaiya/keyd](https://github.com/rvaiya/keyd) - A key remapping daemon for linux.

* [jhawthorn/fzy](https://github.com/jhawthorn/fzy) - :mag: A simple, fast fuzzy finder for the terminal

* [c3lang/c3c](https://github.com/c3lang/c3c) - Compiler for the C3 language

* [json-c/json-c](https://github.com/json-c/json-c) - https://github.com/json-c/json-c is the official code repository for json-c.  See the wiki for release tarballs for download.  API docs at http://json-c.github.io/json-c/

* [weechat/weechat](https://github.com/weechat/weechat) - The extensible chat client.

* [checkpoint-restore/criu](https://github.com/checkpoint-restore/criu) - Checkpoint/Restore tool

* [hpjansson/chafa](https://github.com/hpjansson/chafa) - 📺🗿 Terminal graphics for the 21st century.

* [rvaiya/warpd](https://github.com/rvaiya/warpd) - A modal keyboard-driven virtual pointer

* [fwupd/fwupd](https://github.com/fwupd/fwupd) - A system daemon to allow session software to update firmware

* [civetweb/civetweb](https://github.com/civetweb/civetweb) - Embedded C/C++ web server

* [acl-dev/acl](https://github.com/acl-dev/acl) - C/C++ server and network library, including coroutine,redis client,http/https/websocket,mqtt, mysql/postgresql/sqlite client with C/C++ for Linux, Android, iOS, MacOS, Windows, etc..

* [citusdata/pg_cron](https://github.com/citusdata/pg_cron) - Run periodic jobs in PostgreSQL

* [tvheadend/tvheadend](https://github.com/tvheadend/tvheadend) - Tvheadend is the leading TV streaming server for Linux with ATSC, DVB-C/C2, DVB-S/S2, DVB-T/T2, IPTV, SAT>IP and unix pipe input sources

* [Ewenwan/ShiYanLou](https://github.com/Ewenwan/ShiYanLou) - 学习C & C++ & python&汇编语言 LLVM编译器 数据结构 算法 操作系统 单片机  linux  面试

* [lastpass/lastpass-cli](https://github.com/lastpass/lastpass-cli) - LastPass command line interface tool

* [stm32duino/Arduino_Core_STM32](https://github.com/stm32duino/Arduino_Core_STM32) - STM32 core support for Arduino

* [srdja/Collections-C](https://github.com/srdja/Collections-C) - A library of generic data structures for the C language.

* [InfiniTimeOrg/InfiniTime](https://github.com/InfiniTimeOrg/InfiniTime) - Firmware for Pinetime smartwatch written in C++ and based on FreeRTOS

* [vifm/vifm](https://github.com/vifm/vifm) - Vifm is a file manager with curses interface, which provides Vim-like environment for managing objects within file systems, extended with some useful ideas from mutt.

* [rxi/log.c](https://github.com/rxi/log.c) - A simple logging library implemented in C99

* [sustrik/libmill](https://github.com/sustrik/libmill) - Go-style concurrency in C

* [RavenSystem/esp-homekit-devices](https://github.com/RavenSystem/esp-homekit-devices) - Advanced firmware to add native Apple HomeKit and custom configurations, compatible with any SoC based on ESP32, ESP32-S, ESP32-C and ESP8266 series. (Shelly, Sonoff, Electrodragon, Tuya...)

* [orangeduck/mpc](https://github.com/orangeduck/mpc) - A Parser Combinator library for C

* [nigels-com/glew](https://github.com/nigels-com/glew) - The OpenGL Extension Wrangler Library

* [eduard-permyakov/permafrost-engine](https://github.com/eduard-permyakov/permafrost-engine) - An OpenGL RTS game engine written in C

* [djkaty/Il2CppInspector](https://github.com/djkaty/Il2CppInspector) - Powerful automated tool for reverse engineering Unity IL2CPP binaries

* [open62541/open62541](https://github.com/open62541/open62541) - Open source implementation of OPC UA (OPC Unified Architecture) aka IEC 62541 licensed under Mozilla Public License v2.0

* [cleanflight/cleanflight](https://github.com/cleanflight/cleanflight) - Clean-code version of the baseflight flight controller firmware

* [yitter/IdGenerator](https://github.com/yitter/IdGenerator) - 💎多语言实现，高性能生成唯一数字ID。 💎优化的雪花算法（SnowFlake）——雪花漂移算法，在缩短ID长度的同时，具备极高瞬时并发处理能力（50W/0.1s）。 💎原生支持 C#/Java/Go/Rust/C/JavaScript/TypeScript/Python/Pascal 多语言，提供其它适用于其它语言的多线程安全调用动态库（FFI）。💎支持容器环境自动扩容（自动注册 WorkerId ），单机或分布式唯一IdGenerator。💎顶尖优化，超强效能。

* [OpenSC/OpenSC](https://github.com/OpenSC/OpenSC) - Open source smart card tools and middleware. PKCS#11/MiniDriver/Tokend

* [cesanta/mongoose-os](https://github.com/cesanta/mongoose-os) - Mongoose OS - an IoT Firmware Development Framework. Supported microcontrollers: ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript.

* [okbob/pspg](https://github.com/okbob/pspg) - Unix pager (with very rich functionality) designed for work with tables. Designed for PostgreSQL, but MySQL is supported too. Works well with pgcli too. Can be used as CSV or TSV viewer too. It supports searching, selecting rows, columns, or block and export selected area to clipboard.

* [zauonlok/renderer](https://github.com/zauonlok/renderer) - A shader-based software renderer written from scratch in C89

* [altdesktop/playerctl](https://github.com/altdesktop/playerctl) - 🎧 mpris media player command-line controller for vlc, mpv, RhythmBox, web browsers, cmus, mpd, spotify and others.

* [mas-bandwidth/yojimbo](https://github.com/mas-bandwidth/yojimbo) - A network library for client/server games written in C++

* [matrixcascade/PainterEngine](https://github.com/matrixcascade/PainterEngine) - PainterEngine is a application/game engine with software renderer,PainterEngine can be transplanted to any platform that supports C

* [benhoyt/inih](https://github.com/benhoyt/inih) - Simple .INI file parser in C, good for embedded systems

* [swiftlang/swift-corelibs-libdispatch](https://github.com/swiftlang/swift-corelibs-libdispatch) - The libdispatch Project, (a.k.a. Grand Central Dispatch), for concurrency on multicore hardware

* [open-telemetry/opentelemetry-ebpf-profiler](https://github.com/open-telemetry/opentelemetry-ebpf-profiler) - The production-scale datacenter profiler (C/C++, Go, Rust, Python, Java, NodeJS, .NET, PHP, Ruby, Perl, ...)

* [cloudwu/coroutine](https://github.com/cloudwu/coroutine) - A asymmetric coroutine library for C.

* [tj/luna](https://github.com/tj/luna) - luna programming language - a small, elegant VM implemented in C

* [seemoo-lab/nexmon](https://github.com/seemoo-lab/nexmon) - The C-based Firmware Patching Framework for Broadcom/Cypress WiFi Chips that enables Monitor Mode, Frame Injection and much more

* [Exely/CSAPP-Labs](https://github.com/Exely/CSAPP-Labs) - Solutions and Notes for Labs of Computer Systems: A Programmer's Perspective 3rd Editon // 《深入理解计算机系统》第三版的实验文件、解答与笔记

* [MayaPosch/NymphCast](https://github.com/MayaPosch/NymphCast) - Audio and video casting system with support for custom applications.

* [linux-can/can-utils](https://github.com/linux-can/can-utils) - Linux-CAN / SocketCAN user space applications

* [brendan-rius/c-jwt-cracker](https://github.com/brendan-rius/c-jwt-cracker) - JWT brute force cracker written in C

* [concurrencykit/ck](https://github.com/concurrencykit/ck) - Concurrency primitives, safe memory reclamation mechanisms and non-blocking (including lock-free) data structures designed to aid in the research, design and implementation of high performance concurrent systems developed in C99+.

* [Perfare/Zygisk-Il2CppDumper](https://github.com/Perfare/Zygisk-Il2CppDumper) - Using Zygisk to dump il2cpp data at runtime

* [p-gen/smenu](https://github.com/p-gen/smenu) - smenu started as a lightweight and flexible terminal menu generator, but quickly evolved into a powerful and versatile CLI selection tool for interactive or scripting use.

* [MinhasKamal/CreepyCodeCollection](https://github.com/MinhasKamal/CreepyCodeCollection) - A Nonsense Collection of Disgusting Codes

* [recp/cglm](https://github.com/recp/cglm) - 📽 Highly Optimized 2D / 3D Graphics Math (glm) for C

* [linux-test-project/ltp](https://github.com/linux-test-project/ltp) - Linux Test Project (mailing list: https://lists.linux.it/listinfo/ltp)

* [xiph/opus](https://github.com/xiph/opus) - Modern audio compression for the internet.

* [vnmakarov/mir](https://github.com/vnmakarov/mir) - A lightweight JIT compiler based on MIR (Medium Internal Representation) and C11 JIT compiler and interpreter based on MIR

* [cc65/cc65](https://github.com/cc65/cc65) - cc65 - a freeware C compiler for 6502 based systems

* [solokeys/solo1](https://github.com/solokeys/solo1) - Solo 1 firmware in C

* [kkos/oniguruma](https://github.com/kkos/oniguruma) - regular expression library

* [pret/pokeemerald](https://github.com/pret/pokeemerald) - Decompilation of Pokémon Emerald

* [gloxec/CrossC2](https://github.com/gloxec/CrossC2) - generate CobaltStrike's cross-platform payload

* [Notselwyn/CVE-2024-1086](https://github.com/Notselwyn/CVE-2024-1086) - Universal local privilege escalation Proof-of-Concept exploit for CVE-2024-1086, working on most Linux kernels between v5.14 and v6.6, including Debian, Ubuntu, and KernelCTF. The success rate is 99.4% in KernelCTF images.

* [tezc/sc](https://github.com/tezc/sc) - Common libraries and data structures for C.

* [chjj/compton](https://github.com/chjj/compton) - A compositor for X11.

* [asterisk/asterisk](https://github.com/asterisk/asterisk) - The official Asterisk Project repository.

* [HardySimpson/zlog](https://github.com/HardySimpson/zlog) - A reliable, high-performance, thread safe, flexsible, clear-model, pure C logging library.

* [siduck/chadwm](https://github.com/siduck/chadwm) - Making dwm as beautiful as possible!

* [SRombauts/SQLiteCpp](https://github.com/SRombauts/SQLiteCpp) - SQLiteC++ (SQLiteCpp) is a smart and easy to use C++ SQLite3 wrapper.

* [mvp/uhubctl](https://github.com/mvp/uhubctl) - uhubctl - USB hub per-port power control

* [slembcke/Chipmunk2D](https://github.com/slembcke/Chipmunk2D) - A fast and lightweight 2D game physics library.

* [coreboot/coreboot](https://github.com/coreboot/coreboot) - Mirror of https://review.coreboot.org/coreboot.git. We don't handle Pull Requests.

* [mpitutorial/mpitutorial](https://github.com/mpitutorial/mpitutorial) - MPI programming lessons in C and executable code examples

* [skywind3000/mini3d](https://github.com/skywind3000/mini3d) - 3D Software Renderer in 700 Lines !!

* [open-mpi/ompi](https://github.com/open-mpi/ompi) - Open MPI main development repository

* [boazsegev/facil.io](https://github.com/boazsegev/facil.io) - Your high performance web application C framework

* [lloyd/yajl](https://github.com/lloyd/yajl) - A fast streaming JSON parsing library in C.

* [VadimBoev/FlappyBird](https://github.com/VadimBoev/FlappyBird) - Less than 100 Kilobytes. Works for Android 5.1 and above

* [syslog-ng/syslog-ng](https://github.com/syslog-ng/syslog-ng) - syslog-ng is an enhanced log daemon, supporting a wide range of input and output methods: syslog, unstructured text, queueing, SQL & NoSQL.

* [way-cooler/way-cooler](https://github.com/way-cooler/way-cooler) - Wayland compositor for AwesomeWM

* [scandum/quadsort](https://github.com/scandum/quadsort) - Quadsort is a branchless stable adaptive mergesort faster than quicksort.

* [FreeRADIUS/freeradius-server](https://github.com/FreeRADIUS/freeradius-server) - FreeRADIUS - A multi-protocol policy server.

* [symisc/unqlite](https://github.com/symisc/unqlite) - An Embedded NoSQL, Transactional Database Engine

* [glouw/tinn](https://github.com/glouw/tinn) - A tiny neural network library

* [taviso/ctypes.sh](https://github.com/taviso/ctypes.sh) - A foreign function interface for bash.

* [owntone/owntone-server](https://github.com/owntone/owntone-server) - Linux/FreeBSD DAAP (iTunes) and MPD audio server with support for AirPlay 1 and 2 speakers (multiroom), Apple Remote (and compatibles), Chromecast, Spotify and internet radio.

* [bitcoin-core/secp256k1](https://github.com/bitcoin-core/secp256k1) - Optimized C library for EC operations on curve secp256k1

* [mkirchner/linked-list-good-taste](https://github.com/mkirchner/linked-list-good-taste) - Linus Torvalds' linked list argument for good taste, explained

* [Pithikos/C-Thread-Pool](https://github.com/Pithikos/C-Thread-Pool) - A minimal but powerful thread pool in ANSI C

* [distcc/distcc](https://github.com/distcc/distcc) - distributed builds for C, C++ and Objective C

* [rspamd/rspamd](https://github.com/rspamd/rspamd) - Rapid spam filtering system.

* [MarlinFirmware/Configurations](https://github.com/MarlinFirmware/Configurations) - Configurations for Marlin Firmware

* [virtio-win/kvm-guest-drivers-windows](https://github.com/virtio-win/kvm-guest-drivers-windows) - Windows paravirtualized drivers for QEMU\KVM

* [rsyslog/rsyslog](https://github.com/rsyslog/rsyslog) - a Rocket-fast SYStem for LOG processing

* [TheTumultuousUnicornOfDarkness/CPU-X](https://github.com/TheTumultuousUnicornOfDarkness/CPU-X) - CPU-X is a Free software that gathers information on CPU, motherboard and more

* [TinyCC/tinycc](https://github.com/TinyCC/tinycc) - Unofficial mirror of mob development branch

* [bats3c/shad0w](https://github.com/bats3c/shad0w) - A post exploitation framework designed to operate covertly on heavily monitored environments

* [Snaipe/Criterion](https://github.com/Snaipe/Criterion) - A cross-platform C and C++ unit testing framework for the 21st century

* [drh/lcc](https://github.com/drh/lcc) - The lcc retargetable ANSI C compiler

* [proot-me/proot](https://github.com/proot-me/proot) - chroot, mount --bind, and binfmt_misc without privilege/setup for Linux

* [davidmoreno/onion](https://github.com/davidmoreno/onion) - C library to create simple HTTP servers and Web Applications.

* [rapiz1/DungeonRush](https://github.com/rapiz1/DungeonRush) - 👾🐍 A opensource game inspired by Snake, written in pure C with SDL

* [codeplea/genann](https://github.com/codeplea/genann) - simple neural network library in ANSI C

* [cyring/CoreFreq](https://github.com/cyring/CoreFreq) - CoreFreq : CPU monitoring and tuning software designed for 64-bit processors.

* [vmg/sundown](https://github.com/vmg/sundown) - Standards compliant, fast, secure markdown processing library in C

* [eclipse-paho/paho.mqtt.c](https://github.com/eclipse-paho/paho.mqtt.c) - An Eclipse Paho C client library for MQTT for Windows, Linux and MacOS. API documentation: https://eclipse.github.io/paho.mqtt.c/

* [berdav/CVE-2021-4034](https://github.com/berdav/CVE-2021-4034) - CVE-2021-4034 1day

* [chocolate-doom/chocolate-doom](https://github.com/chocolate-doom/chocolate-doom) - Chocolate Doom is a Doom source port that is minimalist and historically accurate.

* [andrewrk/libsoundio](https://github.com/andrewrk/libsoundio) - C library for cross-platform real-time audio input and output

* [apple/cups](https://github.com/apple/cups) - Apple CUPS Sources

* [0voice/ffmpeg_develop_doc](https://github.com/0voice/ffmpeg_develop_doc) - 2023年，最新音视频学习资料整理，项目（调试可用），ffmpeg命令手册，文章，编解码论文，视频讲解，面试题全套资料

* [sahib/rmlint](https://github.com/sahib/rmlint) - Extremely fast tool to remove duplicates and other lint from your filesystem

* [iPlug2/iPlug2](https://github.com/iPlug2/iPlug2) - C++ Audio Plug-in Framework for desktop, mobile and web

* [cesanta/mjs](https://github.com/cesanta/mjs) - Embedded JavaScript engine for C/C++

* [Dr-Noob/cpufetch](https://github.com/Dr-Noob/cpufetch) - Simple yet fancy CPU architecture fetching tool

* [pbatard/libwdi](https://github.com/pbatard/libwdi) - Windows Driver Installer library for USB devices

* [open-quantum-safe/liboqs](https://github.com/open-quantum-safe/liboqs) - C library for prototyping and experimenting with quantum-resistant cryptography

* [liballeg/allegro5](https://github.com/liballeg/allegro5) - The official Allegro 5 git repository. Pull requests welcome!

* [Lora-net/LoRaMac-node](https://github.com/Lora-net/LoRaMac-node) - Reference implementation and documentation of a LoRa network node.

* [flutter/codelabs](https://github.com/flutter/codelabs) - Flutter codelab examples

* [c-ares/c-ares](https://github.com/c-ares/c-ares) - A C library for asynchronous DNS requests

* [rsta2/circle](https://github.com/rsta2/circle) - A C++ bare metal environment for Raspberry Pi with USB (32 and 64 bit)

* [begeekmyfriend/bplustree](https://github.com/begeekmyfriend/bplustree) - A minimal but extreme fast B+ tree indexing structure demo for billions of key-value storage

* [open5gs/open5gs](https://github.com/open5gs/open5gs) - Open5GS is a C-language Open Source implementation for 5G Core and EPC, i.e. the core network of LTE/NR network (Release-17)

* [h2o/picohttpparser](https://github.com/h2o/picohttpparser) - tiny HTTP parser written in C (used in HTTP::Parser::XS et al.)

* [luke-jr/bfgminer](https://github.com/luke-jr/bfgminer) - Modular ASIC/FPGA miner written in C, featuring overclocking, monitoring, fan speed control and remote interface capabilities.

* [m0nad/Diamorphine](https://github.com/m0nad/Diamorphine) - LKM rootkit for Linux Kernels 2.6.x/3.x/4.x/5.x/6.x (x86/x86_64 and ARM64)

* [chobits/ngx_http_proxy_connect_module](https://github.com/chobits/ngx_http_proxy_connect_module) - A forward proxy module for CONNECT request handling

* [B-Con/crypto-algorithms](https://github.com/B-Con/crypto-algorithms) - Basic implementations of standard cryptography algorithms, like AES and SHA-1.

* [orangeduck/Corange](https://github.com/orangeduck/Corange) - Pure C Game Engine

* [rui314/9cc](https://github.com/rui314/9cc) - A Small C Compiler

* [statsite/statsite](https://github.com/statsite/statsite) - C implementation of statsd

* [marella/ctransformers](https://github.com/marella/ctransformers) - Python bindings for the Transformer models implemented in C/C++ using GGML library.

* [free-audio/clap](https://github.com/free-audio/clap) - Audio Plugin API

* [mgerdes/Open-Golf](https://github.com/mgerdes/Open-Golf) - A cross-platform minigolf game written in C.

* [jeremycw/httpserver.h](https://github.com/jeremycw/httpserver.h) - Single header library for writing non-blocking HTTP servers in C

* [jarikomppa/soloud](https://github.com/jarikomppa/soloud) - Free, easy, portable audio engine for games

* [ColinIanKing/stress-ng](https://github.com/ColinIanKing/stress-ng) - This is the stress-ng upstream project git repository.  stress-ng will stress test a computer system in various selectable ways. It was designed to exercise various physical subsystems of a computer as well as the various operating system kernel interfaces.

* [h3xduck/TripleCross](https://github.com/h3xduck/TripleCross) - A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.

* [cs50/libcs50](https://github.com/cs50/libcs50) - This is CS50's Library for C.

* [Stephane-D/SGDK](https://github.com/Stephane-D/SGDK) - SGDK - A free and open development kit for the Sega Mega Drive

* [sdlpal/sdlpal](https://github.com/sdlpal/sdlpal) - SDL-based reimplementation of the classic Chinese-language RPG known as PAL.

* [gurnec/HashCheck](https://github.com/gurnec/HashCheck) - HashCheck Shell Extension for Windows with added SHA2, SHA3, and multithreading; originally from code.kliu.org

* [droe/sslsplit](https://github.com/droe/sslsplit) - Transparent SSL/TLS interception

* [citusdata/cstore_fdw](https://github.com/citusdata/cstore_fdw) - Columnar storage extension for Postgres built as a foreign data wrapper. Check out https://github.com/citusdata/citus for a modernized columnar storage implementation built as a table access method.

* [igraph/igraph](https://github.com/igraph/igraph) - Library for the analysis of networks

* [symisc/sod](https://github.com/symisc/sod) - An Embedded Computer Vision & Machine Learning Library (CPU Optimized & IoT Capable)

* [sheredom/utf8.h](https://github.com/sheredom/utf8.h) - 📚 single header utf8 string functions for C and C++

* [emsec/ChameleonMini](https://github.com/emsec/ChameleonMini) - The ChameleonMini is a versatile contactless smartcard emulator compliant to NFC. The ChameleonMini was developed by https://kasper-oswald.de.  The device is available at https://shop.kasper.it. For further information see the Getting Started Page https://rawgit.com/emsec/ChameleonMini/master/Doc/Doxygen/html/_page__getting_started.html or the Wiki tab above.

* [PromyLOPh/pianobar](https://github.com/PromyLOPh/pianobar) - Console-based pandora.com player

* [gbdk-2020/gbdk-2020](https://github.com/gbdk-2020/gbdk-2020) - An updated version of GBDK, C compiler, assembler, linker and set of libraries for the Nintendo Gameboy, Nintendo Entertainment System, Sega Master System, Sega Game Gear.

* [cgdb/cgdb](https://github.com/cgdb/cgdb) - Console front-end to the GNU debugger

* [nfc-tools/libnfc](https://github.com/nfc-tools/libnfc) - Platform independent Near Field Communication (NFC) library

* [opsengine/cpulimit](https://github.com/opsengine/cpulimit) - CPU usage limiter for Linux

* [emweb/wt](https://github.com/emweb/wt) - Wt, C++ Web Toolkit

* [agavrel/42_CheatSheet](https://github.com/agavrel/42_CheatSheet) - A comprehensive guide to 50 years of evolution of strict C programming, a tribute to Dennis Ritchie's language

* [cnlohr/mini-rv32ima](https://github.com/cnlohr/mini-rv32ima) - A tiny C header-only risc-v emulator.

* [armink/CmBacktrace](https://github.com/armink/CmBacktrace) - Advanced fault backtrace library for ARM Cortex-M series MCU | ARM Cortex-M 系列 MCU 错误追踪库

* [sustrik/libdill](https://github.com/sustrik/libdill) - Structured concurrency in C

* [LIJI32/SameBoy](https://github.com/LIJI32/SameBoy) - Game Boy and Game Boy Color emulator written in C

* [RRZE-HPC/likwid](https://github.com/RRZE-HPC/likwid) - Performance monitoring and benchmarking suite

* [mattiasgustavsson/libs](https://github.com/mattiasgustavsson/libs) - Single-file public domain libraries for C/C++

* [libusb/hidapi](https://github.com/libusb/hidapi) - A Simple cross-platform library for communicating with HID devices

* [xiph/flac](https://github.com/xiph/flac) - Free Lossless Audio Codec

* [facebookarchive/libphenom](https://github.com/facebookarchive/libphenom) - An eventing framework for building high performance and high scalability systems in C.

* [lexborisov/myhtml](https://github.com/lexborisov/myhtml) - Fast C/C++ HTML 5 Parser. Using threads.

* [commonmark/cmark](https://github.com/commonmark/cmark) - CommonMark parsing and rendering library and program in C

* [hfiref0x/WinObjEx64](https://github.com/hfiref0x/WinObjEx64) - Windows Object Explorer 64-bit

* [DeaDBeeF-Player/deadbeef](https://github.com/DeaDBeeF-Player/deadbeef) - DeaDBeeF Player

* [rougier/freetype-gl](https://github.com/rougier/freetype-gl) - OpenGL text using one vertex buffer, one texture and FreeType

* [vinniefalco/LuaBridge](https://github.com/vinniefalco/LuaBridge) - A lightweight, dependency-free library for binding Lua to C++

* [taviso/ctftool](https://github.com/taviso/ctftool) - Interactive CTF Exploration Tool

* [vgmstream/vgmstream](https://github.com/vgmstream/vgmstream) - vgmstream - A library for playback of various streamed audio formats used in video games.

* [samtools/samtools](https://github.com/samtools/samtools) - Tools (written in C using htslib) for manipulating next-generation sequencing data

* [xorvoid/sectorc](https://github.com/xorvoid/sectorc) - A C Compiler that fits in the 512 byte boot sector of an x86 machine

* [cloudwu/pbc](https://github.com/cloudwu/pbc) - A protocol buffers library for C

* [EdgeTX/edgetx](https://github.com/EdgeTX/edgetx) - EdgeTX is the cutting edge open source firmware for your R/C radio

* [lexbor/lexbor](https://github.com/lexbor/lexbor) - Lexbor is development of an open source HTML Renderer library. https://lexbor.com

* [AstraThreshold/oled-ui-astra](https://github.com/AstraThreshold/oled-ui-astra) - A smooth, easy-to-deploy, and easy-to-extend OLED UI framework, based on C++.

* [brektrou/rtl8821CU](https://github.com/brektrou/rtl8821CU) - Realtek RTL8811CU/RTL8821CU USB Wi-Fi adapter driver for Linux

* [bugaevc/wl-clipboard](https://github.com/bugaevc/wl-clipboard) - Command-line copy/paste utilities for Wayland

* [SpenceKonde/ATTinyCore](https://github.com/SpenceKonde/ATTinyCore) - Arduino core for ATtiny 1634, 828, x313, x4, x41, x5, x61, x7 and x8

* [buserror/simavr](https://github.com/buserror/simavr) - simavr is a lean, mean and hackable AVR simulator for linux & OSX

* [golang-ui/nuklear](https://github.com/golang-ui/nuklear) - This project provides Go bindings for nuklear.h — a small ANSI C GUI library.

* [HITSZ-OpenCS/HITSZ-OpenCS](https://github.com/HITSZ-OpenCS/HITSZ-OpenCS) - 哈尔滨工业大学（深圳）计算机专业课程攻略 | Guidance for courses in Department of Computer Science, Harbin Institute of Technology (Shenzhen)

* [metacall/core](https://github.com/metacall/core) - MetaCall: The ultimate polyglot programming experience.

* [zlib-ng/zlib-ng](https://github.com/zlib-ng/zlib-ng) - zlib replacement with optimizations for "next generation" systems.

* [AllAlgorithms/c](https://github.com/AllAlgorithms/c) - Implementation of All ▲lgorithms in C Programming Language

* [linux-rdma/rdma-core](https://github.com/linux-rdma/rdma-core) - RDMA core userspace libraries and daemons

* [RoaringBitmap/CRoaring](https://github.com/RoaringBitmap/CRoaring) - Roaring bitmaps in C (and C++), with SIMD (AVX2, AVX-512 and NEON) optimizations: used by Apache Doris, ClickHouse, and StarRocks

* [Hansimov/csapp](https://github.com/Hansimov/csapp) - 个人整理的《深入理解计算机系统》中文电子版（原书第 3 版）与实验材料：https://hansimov.gitbook.io/csapp/

* [libtom/libtomcrypt](https://github.com/libtom/libtomcrypt) - LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.

* [letoram/arcan](https://github.com/letoram/arcan) - Arcan - [Display Server, Multimedia Framework, Game Engine] -> "Desktop Engine"

* [h0mbre/Learning-C](https://github.com/h0mbre/Learning-C) - A series of mini-projects used to learn C for beginners

* [ThakeeNathees/pocketlang](https://github.com/ThakeeNathees/pocketlang) - A lightweight, fast embeddable scripting language.

* [jmcnamara/libxlsxwriter](https://github.com/jmcnamara/libxlsxwriter) - A C library for creating Excel XLSX files.

* [luohaha/Chinese-uvbook](https://github.com/luohaha/Chinese-uvbook) - 翻译的libuv的中文教程

* [systemd/casync](https://github.com/systemd/casync) - Content-Addressable Data Synchronization Tool

* [PortAudio/portaudio](https://github.com/PortAudio/portaudio) - PortAudio is a cross-platform, open-source C language library for real-time audio input and output.

* [mltframework/mlt](https://github.com/mltframework/mlt) - MLT Multimedia Framework

* [protocolbuffers/upb](https://github.com/protocolbuffers/upb) - a small protobuf implementation in C

* [nfs-ganesha/nfs-ganesha](https://github.com/nfs-ganesha/nfs-ganesha) - NFS-Ganesha is an NFSv3,v4,v4.1 fileserver that runs in user mode on most UNIX/Linux systems

* [pikasTech/PikaPython](https://github.com/pikasTech/PikaPython) - An ultra-lightweight Python interpreter that runs with only 4KB of RAM, zero dependencies. It is ready to use out of the box without any configuration required and easy to extend with C. Similar project: MicroPython, JerryScript.

* [cnlohr/channel3](https://github.com/cnlohr/channel3) - ESP8266 Analog Broadcast Television Interface

* [lucavallin/barco](https://github.com/lucavallin/barco) - Linux containers from scratch in C.

* [YeeZTech/YeeZ-Privacy-Computing](https://github.com/YeeZTech/YeeZ-Privacy-Computing) - Fidelius - YeeZ Privacy Computing 基于可信执行环境的熠智隐私计算中间件

* [atomvm/AtomVM](https://github.com/atomvm/AtomVM) - Tiny Erlang VM

* [silentbicycle/greatest](https://github.com/silentbicycle/greatest) - A C testing library in 1 file. No dependencies, no dynamic allocation. ISC licensed.

* [linux-nvme/nvme-cli](https://github.com/linux-nvme/nvme-cli) - NVMe management command line interface.

* [brianmario/yajl-ruby](https://github.com/brianmario/yajl-ruby) - A streaming JSON parsing and encoding library for Ruby (C bindings to yajl)

* [rui314/minilisp](https://github.com/rui314/minilisp) - A readable lisp in less than 1k lines of C

* [libimobiledevice/usbmuxd](https://github.com/libimobiledevice/usbmuxd) - A socket daemon to multiplex connections from and to iOS devices

* [brenns10/lsh](https://github.com/brenns10/lsh) - Simple shell implementation.  Tutorial here ->

* [apple/swift-crypto](https://github.com/apple/swift-crypto) - Open-source implementation of a substantial portion of the API of Apple CryptoKit suitable for use on Linux platforms.

* [libsndfile/libsndfile](https://github.com/libsndfile/libsndfile) - A C library for reading and writing sound files containing sampled audio data.

* [jkuhlmann/cgltf](https://github.com/jkuhlmann/cgltf) - :diamond_shape_with_a_dot_inside: Single-file glTF 2.0 loader and writer written in C99

* [Sapd/HeadsetControl](https://github.com/Sapd/HeadsetControl) - Sidetone and Battery status for Logitech G930, G533, G633, G933 SteelSeries Arctis 7/PRO 2019 and Corsair VOID (Pro) in Linux and MacOSX

* [joan2937/pigpio](https://github.com/joan2937/pigpio) - pigpio is a C library for the Raspberry which allows control of the General Purpose Input Outputs (GPIO).

* [CANopenNode/CANopenNode](https://github.com/CANopenNode/CANopenNode) - CANopen protocol stack

* [miniupnp/miniupnp](https://github.com/miniupnp/miniupnp) - UPnP IGD implementation

* [ands/lightmapper](https://github.com/ands/lightmapper) - A C/C++ single-file library for drop-in lightmap baking. Just use your existing OpenGL renderer to bounce light!

* [vergoh/vnstat](https://github.com/vergoh/vnstat) - vnStat - a network traffic monitor for Linux and BSD

* [Softmotions/ejdb](https://github.com/Softmotions/ejdb) - :snowboarder: EJDB2 — Embeddable JSON Database engine C library. Simple XPath like query language (JQL).

* [ClassiCube/ClassiCube](https://github.com/ClassiCube/ClassiCube) - Custom Minecraft Classic / ClassiCube client written in C  from scratch (formerly ClassicalSharp in C#)

* [Harvey-OS/harvey](https://github.com/Harvey-OS/harvey) - A distributed operating system

* [dekuNukem/bob_cassette_rewinder](https://github.com/dekuNukem/bob_cassette_rewinder) - Renew and Refill Bob Cassettes for 98% Cost Saving!

* [rxi/dyad](https://github.com/rxi/dyad) - Asynchronous networking for C

* [laruence/yar](https://github.com/laruence/yar) - Light, concurrent RPC framework for PHP & C

* [cesanta/v7](https://github.com/cesanta/v7) - Embedded JavaScript engine for C/C++

* [nvim-telescope/telescope-fzf-native.nvim](https://github.com/nvim-telescope/telescope-fzf-native.nvim) - FZF sorter for telescope written in c

* [gentilkiwi/kekeo](https://github.com/gentilkiwi/kekeo) - A little toolbox to play with Microsoft Kerberos in C

* [alexfru/SmallerC](https://github.com/alexfru/SmallerC) - Simple C compiler

* [kuba--/zip](https://github.com/kuba--/zip) - A portable, simple zip library written in C

* [Visgean/Zeus](https://github.com/Visgean/Zeus) - NOT MY CODE! Zeus trojan horse - leaked in 2011, I am not the author. This repository is for study purposes only, do not message me about your lame hacking attempts.

* [DreamAndDead/CSAPP-3e-Solutions](https://github.com/DreamAndDead/CSAPP-3e-Solutions) - CSAPP 3e Solutions, migrated to github.io from gitbook.io which is being shut down.

* [posva/catimg](https://github.com/posva/catimg) - 🦦 Insanely fast image printing in your terminal

* [WillPower3309/swayfx](https://github.com/WillPower3309/swayfx) - SwayFX: Sway, but with eye candy!

* [bloomberg/comdb2](https://github.com/bloomberg/comdb2) - Bloomberg's distributed RDBMS

* [aixed/WeChat-Hook](https://github.com/aixed/WeChat-Hook) - PC wechat robot interface [wechat Hook] / PC微信3.9.10.16/3.9.2.23接口 微信Hook 微信机器人 微信Hook源码 PC微信协议算法

* [HypoPG/hypopg](https://github.com/HypoPG/hypopg) - Hypothetical Indexes for PostgreSQL

* [pi-hole/FTL](https://github.com/pi-hole/FTL) - The Pi-hole FTL engine

* [eclipse/mraa](https://github.com/eclipse/mraa) - Linux Library for low speed IO Communication in C with bindings for C++, Python, Node.js & Java. Supports generic io platforms, as well as Intel Edison, Intel Joule, Raspberry Pi and many more.

* [libressl/portable](https://github.com/libressl/portable) - LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.

* [mytechnotalent/Hacking-Windows](https://github.com/mytechnotalent/Hacking-Windows) - A FREE Windows C development course where we will learn the Win32API and reverse engineer each step utilizing IDA Free in both an x86 and x64 environment.

* [chenyahui/AnnotatedCode](https://github.com/chenyahui/AnnotatedCode) - 知名开源代码库的注释版：C++、Golang等

* [Water-Melon/Melon](https://github.com/Water-Melon/Melon) -  A generic cross-platform C library that includes many commonly used components and frameworks, and a new scripting language interpreter. It currently supports C99 and Aspect-Oriented Programming (AOP).

* [eclipse-paho/paho.mqtt.embedded-c](https://github.com/eclipse-paho/paho.mqtt.embedded-c) - Paho MQTT C client library for embedded systems.  Paho is an Eclipse IoT project (https://iot.eclipse.org/)

* [kgabis/parson](https://github.com/kgabis/parson) - Lightweight JSON library written in C.

* [trezor/trezor-firmware](https://github.com/trezor/trezor-firmware) - :lock: Trezor Firmware Monorepo

* [tanakh/cmdline](https://github.com/tanakh/cmdline) - A Command Line Parser

* [leo-arch/clifm](https://github.com/leo-arch/clifm) - The shell-like, command line terminal file manager: simple, fast, extensible, and lightweight as hell.

* [libssh2/libssh2](https://github.com/libssh2/libssh2) - the SSH library

* [libimobiledevice/idevicerestore](https://github.com/libimobiledevice/idevicerestore) - Restore/upgrade firmware of iOS devices

* [OpenEtherCATsociety/SOEM](https://github.com/OpenEtherCATsociety/SOEM) - Simple Open Source EtherCAT Master

* [tsherif/space-shooter.c](https://github.com/tsherif/space-shooter.c) - A cross-platform, top-down 2D space shooter written in C using only platform libraries.

* [Cyan4973/FiniteStateEntropy](https://github.com/Cyan4973/FiniteStateEntropy) - New generation entropy codecs : Finite State Entropy and Huff0

* [Fazecast/jSerialComm](https://github.com/Fazecast/jSerialComm) - Platform-independent serial port access for Java

* [ARM-software/CMSIS_5](https://github.com/ARM-software/CMSIS_5) - CMSIS Version 5 Development Repository

* [Battelle/movfuscator](https://github.com/Battelle/movfuscator) - The single instruction C compiler

* [profanity-im/profanity](https://github.com/profanity-im/profanity) - Ncurses based XMPP client

* [ninia/jep](https://github.com/ninia/jep) - Embed Python in Java

* [rxi/fe](https://github.com/rxi/fe) - A tiny, embeddable language implemented in ANSI C

* [cr-marcstevens/sha1collisiondetection](https://github.com/cr-marcstevens/sha1collisiondetection) - Library and command line tool to detect SHA-1 collision in a file

* [pimoroni/pimoroni-pico](https://github.com/pimoroni/pimoroni-pico) - Libraries and examples to support Pimoroni Pico add-ons in C++ and MicroPython.

* [mupen64plus/mupen64plus-core](https://github.com/mupen64plus/mupen64plus-core) - Core module of the Mupen64Plus project

* [contiki-ng/contiki-ng](https://github.com/contiki-ng/contiki-ng) - Contiki-NG: The OS for Next Generation IoT Devices

* [trailofbits/ctf](https://github.com/trailofbits/ctf) - CTF Field Guide

* [angband/angband](https://github.com/angband/angband) - A free, single-player roguelike dungeon exploration game

* [cisco-system-traffic-generator/trex-core](https://github.com/cisco-system-traffic-generator/trex-core) - trex-core site

* [egzumer/uv-k5-firmware-custom](https://github.com/egzumer/uv-k5-firmware-custom) - A merge between https://github.com/OneOfEleven/uv-k5-firmware-custom and https://github.com/fagci/uv-k5-firmware-fagci-mod

* [shiyanhui/libcsp](https://github.com/shiyanhui/libcsp) - A concurrency C library 10x faster than Golang.

* [vonzhou/CSAPP](https://github.com/vonzhou/CSAPP) - CSAPP,《深入理解计算机系统结构》2nd ，阅读与实践！

* [danigargu/CVE-2020-0796](https://github.com/danigargu/CVE-2020-0796) - CVE-2020-0796 - Windows SMBv3 LPE exploit #SMBGhost

* [abb128/LiveCaptions](https://github.com/abb128/LiveCaptions) - Linux Desktop application that provides live captioning

* [easytarget/esp32-cam-webserver](https://github.com/easytarget/esp32-cam-webserver) - Expanded version of the Espressif ESP webcam

* [cherry-embedded/CherryUSB](https://github.com/cherry-embedded/CherryUSB) - CherryUSB is a tiny, beautiful and portable USB host and device stack for embedded system with USB IP

* [Bumblebee-Project/Bumblebee](https://github.com/Bumblebee-Project/Bumblebee) - Bumblebee daemon and client rewritten in C

* [taf2/curb](https://github.com/taf2/curb) - Ruby bindings for libcurl

* [json-parser/json-parser](https://github.com/json-parser/json-parser) - Very low footprint DOM-style JSON parser written in portable ANSI C

* [danielwaterworth/Raphters](https://github.com/danielwaterworth/Raphters) - [DEPRECATED] A web framework for C.

* [zpl-c/librg](https://github.com/zpl-c/librg) - 🚀  Making multi-player gamedev simpler since 2017

* [switchbrew/libnx](https://github.com/switchbrew/libnx) - Library for Switch Homebrew

* [vurtun/lib](https://github.com/vurtun/lib) - single header libraries for C/C++

* [mackron/dr_libs](https://github.com/mackron/dr_libs) - Audio decoding libraries for C/C++, each in a single source file.

* [trustedsec/CS-Situational-Awareness-BOF](https://github.com/trustedsec/CS-Situational-Awareness-BOF) - Situational Awareness commands implemented using Beacon Object Files

* [andrei-markeev/ts2c](https://github.com/andrei-markeev/ts2c) - Convert Javascript/TypeScript to C

* [nicbarker/clay](https://github.com/nicbarker/clay) - High performance UI layout library in C.

* [dariomanesku/cmftStudio](https://github.com/dariomanesku/cmftStudio) - cmftStudio - GUI counterpart for:

* [libimobiledevice/ideviceinstaller](https://github.com/libimobiledevice/ideviceinstaller) - Manage apps of iOS devices

* [seemoo-lab/owl](https://github.com/seemoo-lab/owl) - An open Apple Wireless Direct Link (AWDL) implementation written in C

* [doonny/PipeCNN](https://github.com/doonny/PipeCNN) - An OpenCL-based FPGA Accelerator for Convolutional Neural Networks

* [Cateners/tiny_computer](https://github.com/Cateners/tiny_computer) - Click-to-run debian 12 xfce on android for Chinese users, with fcitx pinyin input method and some useful packages preinstalled. No termux required.

* [HandmadeMath/HandmadeMath](https://github.com/HandmadeMath/HandmadeMath) - A simple math library for games and computer graphics. Compatible with both C and C++. Public domain and easy to modify.

* [session-replay-tools/cetus](https://github.com/session-replay-tools/cetus) - Cetus is high-performance middleware designed to provide transparent routing between your application and backend MySQL servers.

* [arduino/ArduinoCore-avr](https://github.com/arduino/ArduinoCore-avr) - The Official Arduino AVR core

* [zlib-ng/minizip-ng](https://github.com/zlib-ng/minizip-ng) - Fork of the popular zip manipulation library found in the zlib distribution.

* [zedshaw/learn-c-the-hard-way-lectures](https://github.com/zedshaw/learn-c-the-hard-way-lectures) - All of the code from Learn C The Hard Way, each project, plus the presentation slides used in the videos.

* [csound/csound](https://github.com/csound/csound) - Main repository for Csound

* [armon/bloomd](https://github.com/armon/bloomd) - C network daemon for bloom filters

* [kokke/tiny-regex-c](https://github.com/kokke/tiny-regex-c) - Small portable regex in C

* [gsass1/NTop](https://github.com/gsass1/NTop) - 💻 htop-like system-monitor for Windows with Vi-keybindings.

* [forthespada/MyPoorWebServer](https://github.com/forthespada/MyPoorWebServer) - 一款可运行的基于C++ 实现的WebServer服务器，基于《TCPIP网络编程》和《Linux高性能服务器编程》实现的服务器项目。

* [cage-kiosk/cage](https://github.com/cage-kiosk/cage) - A Wayland kiosk

* [scottcgi/Mojoc](https://github.com/scottcgi/Mojoc) - A cross-platform, open-source, pure C  game engine for mobile game.

* [juliettef/IconFontCppHeaders](https://github.com/juliettef/IconFontCppHeaders) - C and C++ headers, C# and Python classes, Rust files and Go package for icon fonts Font Awesome, Fork Awesome, Google Material Design icons and symbols, Pictogrammers Material Design icons, Kenney game icons, Fontaudio, Codicons and Lucide.

* [mkirchner/gc](https://github.com/mkirchner/gc) - Simple, zero-dependency garbage collection for C

* [y123456yz/Reading-and-comprehense-linux-Kernel-network-protocol-stack](https://github.com/y123456yz/Reading-and-comprehense-linux-Kernel-network-protocol-stack) - linux内核网络协议栈源码阅读分析注释--带详尽中文分析注释以及相关流程分析调用注释，对理解分析内核协议栈源码很有帮助

* [pganalyze/libpg_query](https://github.com/pganalyze/libpg_query) - C library for accessing the PostgreSQL parser outside of the server environment

* [msteinbeck/tinyspline](https://github.com/msteinbeck/tinyspline) - ANSI C library for NURBS, B-Splines, and Bézier curves with interfaces for C++, C#, D, Go, Java, Javascript, Lua, Octave, PHP, Python, R, and Ruby.

* [grimfang4/sdl-gpu](https://github.com/grimfang4/sdl-gpu) - A library for high-performance, modern 2D graphics with SDL written in C.

* [ObKo/stm32-cmake](https://github.com/ObKo/stm32-cmake) - CMake for stm32 developing.

* [monitoringartist/zabbix-docker-monitoring](https://github.com/monitoringartist/zabbix-docker-monitoring) - :whale: Docker/Kubernetes/Mesos/Marathon/Chronos/LXC/LXD/Swarm container monitoring - Docker image, Zabbix template and C module

* [bitcraze/crazyflie-firmware](https://github.com/bitcraze/crazyflie-firmware) - The main firmware for the Crazyflie Nano Quadcopter, Crazyflie Bolt Quadcopter and Roadrunner Positioning Tag.

* [appneta/tcpreplay](https://github.com/appneta/tcpreplay) - Pcap editing and replay tools for *NIX and Windows - Users please download source from

* [zeromq/czmq](https://github.com/zeromq/czmq) - High-level C binding for ØMQ

* [ustcwpz/USTC-CS-Courses-Resource](https://github.com/ustcwpz/USTC-CS-Courses-Resource) - USTC计算机学院课程资源

* [tass-belgium/picotcp](https://github.com/tass-belgium/picotcp) - PicoTCP is a free TCP/IP stack implementation

* [ImpulseAdventure/GUIslice](https://github.com/ImpulseAdventure/GUIslice) - GUIslice drag & drop embedded GUI in C for touchscreen TFT on Arduino, Raspberry Pi, ARM, ESP8266 / ESP32 / M5stack using Adafruit-GFX / TFT_eSPI / UTFT / SDL

* [streetpea/chiaki-ng](https://github.com/streetpea/chiaki-ng) - Next-Generation of Chiaki (the open-source remote play client for PlayStation)

* [DrTimothyAldenDavis/SuiteSparse](https://github.com/DrTimothyAldenDavis/SuiteSparse) - The official SuiteSparse library: a suite of sparse matrix algorithms authored or co-authored by Tim Davis, Texas A&M University.

* [cloudflare/cloudflare-blog](https://github.com/cloudflare/cloudflare-blog) - Cloudflare Blog code samples

* [picolibc/picolibc](https://github.com/picolibc/picolibc) - picolibc - a C library designed for embedded 32- and 64- bit systems.

* [embox/embox](https://github.com/embox/embox) - Modular and configurable OS for embedded applications

* [dibyendumajumdar/ravi](https://github.com/dibyendumajumdar/ravi) - Ravi is a dialect of Lua, featuring limited optional static typing, JIT and AOT compilers

* [ngtcp2/ngtcp2](https://github.com/ngtcp2/ngtcp2) - ngtcp2 project is an effort to implement IETF QUIC protocol

* [chentao0707/QrCodeScan](https://github.com/chentao0707/QrCodeScan) - Android手机客户端二维码扫描

* [celluloid-player/celluloid](https://github.com/celluloid-player/celluloid) - A simple GTK+ frontend for mpv

* [KaisenAmin/c_std](https://github.com/KaisenAmin/c_std) - Implementation of C++ standard libraries in C

* [openucx/ucx](https://github.com/openucx/ucx) - Unified Communication X  (mailing list - https://elist.ornl.gov/mailman/listinfo/ucx-group)

* [sheredom/subprocess.h](https://github.com/sheredom/subprocess.h) - 🐜 single header process launching solution for C and C++

* [taisei-project/taisei](https://github.com/taisei-project/taisei) - A free and open-source Touhou Project fangame

* [outflanknl/C2-Tool-Collection](https://github.com/outflanknl/C2-Tool-Collection) - A collection of tools which integrate with Cobalt Strike (and possibly other C2 frameworks) through BOF and reflective DLL loading techniques.

* [cdown/clipmenu](https://github.com/cdown/clipmenu) - Clipboard management using dmenu

* [tidwall/neco](https://github.com/tidwall/neco) - Concurrency library for C (coroutines)

* [bryanpkc/corkscrew](https://github.com/bryanpkc/corkscrew) - A tool for tunneling SSH through HTTP proxies

* [LibVNC/libvncserver](https://github.com/LibVNC/libvncserver) - LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program.

* [willemt/raft](https://github.com/willemt/raft) - C implementation of the Raft Consensus protocol, BSD licensed

* [sysprog21/shecc](https://github.com/sysprog21/shecc) - A self-hosting and educational C optimizing compiler

* [hyperrealm/libconfig](https://github.com/hyperrealm/libconfig) - C/C++ library for processing configuration files

* [antirez/rax](https://github.com/antirez/rax) - A radix tree implementation in ANSI C

* [newaetech/chipwhisperer](https://github.com/newaetech/chipwhisperer) - ChipWhisperer - the complete open-source toolchain for side-channel power analysis and glitching attacks

* [haywire/haywire](https://github.com/haywire/haywire) - Haywire is an asynchronous HTTP server framework written in C that's built using the event loop based libuv platform layer that node.js is built on top of.

* [deadpixi/mtm](https://github.com/deadpixi/mtm) - Perhaps the smallest useful terminal multiplexer in the world.

* [AlexFanw/HUSTER-CS](https://github.com/AlexFanw/HUSTER-CS) - 华中科技大学 计算机科学与技术学院 课程与实验资料💾

* [rustyrussell/ccan](https://github.com/rustyrussell/ccan) - The C Code Archive Network

* [CE-Programming/CEmu](https://github.com/CE-Programming/CEmu) - Third-party TI-84 Plus CE / TI-83 Premium CE emulator, focused on developer features

* [libexpat/libexpat](https://github.com/libexpat/libexpat) - :herb: Fast streaming XML parser written in C99 with >90% test coverage; moved from SourceForge to GitHub

* [maximegmd/CyberEngineTweaks](https://github.com/maximegmd/CyberEngineTweaks) - Cyberpunk 2077 tweaks, hacks and scripting framework

* [eclipse/paho.mqtt.c](https://github.com/eclipse/paho.mqtt.c) - An Eclipse Paho C client library for MQTT for Windows, Linux and MacOS. API documentation: https://eclipse.github.io/paho.mqtt.c/

* [eclipse/paho.mqtt.embedded-c](https://github.com/eclipse/paho.mqtt.embedded-c) - Paho MQTT C client library for embedded systems.  Paho is an Eclipse IoT project (https://iot.eclipse.org/)

* [ggerganov/whisper.cpp](https://github.com/ggerganov/whisper.cpp) - Port of OpenAI's Whisper model in C/C++

* [cockpit-project/cockpit](https://github.com/cockpit-project/cockpit) - Cockpit is a web-based graphical interface for servers.

* [apple/swift-corelibs-libdispatch](https://github.com/apple/swift-corelibs-libdispatch) - The libdispatch Project, (a.k.a. Grand Central Dispatch), for concurrency on multicore hardware

* [webview/webview](https://github.com/webview/webview) - Tiny cross-platform webview library for C/C++. Uses WebKit (GTK/Cocoa) and Edge WebView2 (Windows).

* [apple/swift-corelibs-foundation](https://github.com/apple/swift-corelibs-foundation) - The Foundation Project, providing core utilities, internationalization, and OS independence

* [tsoding/olive.c](https://github.com/tsoding/olive.c) - Simple 2D Graphics Library for C

* [pocketpy/pocketpy](https://github.com/pocketpy/pocketpy) - Portable Python 3.x Interpreter in Modern C

* [microsoft/checkedc](https://github.com/microsoft/checkedc) - Checked C is an extension to C that lets programmers write C code that is guaranteed by the compiler to be type-safe.  The goal is to let people easily make their existing C code type-safe and eliminate entire classes of errors. Checked C does not address use-after-free errors. This repo has a wiki for Checked C, sample code, the specification, and test code.

* [elastic/otel-profiling-agent](https://github.com/elastic/otel-profiling-agent) - The production-scale datacenter profiler (C/C++, Go, Rust, Python, Java, NodeJS, .NET, PHP, Ruby, Perl, ...)

* [witnessmenow/ESP32-Cheap-Yellow-Display](https://github.com/witnessmenow/ESP32-Cheap-Yellow-Display) - Building a community around a cheap ESP32 Display with a touch screen

* [traildb/traildb](https://github.com/traildb/traildb) - TrailDB is an efficient tool for storing and querying series of events

* [Arinerron/CVE-2022-0847-DirtyPipe-Exploit](https://github.com/Arinerron/CVE-2022-0847-DirtyPipe-Exploit) - A root exploit for CVE-2022-0847 (Dirty Pipe)

* [tj/mon](https://github.com/tj/mon) - mon(1) - Simple single-process process monitoring program written in C

* [glouw/ctl](https://github.com/glouw/ctl) - The C Template Library

* [babelouest/ulfius](https://github.com/babelouest/ulfius) - Web Framework to build REST APIs, Webservices or any HTTP endpoint in C language. Can stream large amount of data, integrate JSON data with Jansson, and create websocket services

* [corosync/corosync](https://github.com/corosync/corosync) - The Corosync Cluster Engine

* [cariboulabs/cariboulite](https://github.com/cariboulabs/cariboulite) - CaribouLite turns any 40-pin Raspberry-Pi into a Tx/Rx 6GHz SDR

* [libcheck/check](https://github.com/libcheck/check) - A unit testing framework for C

* [FRiCKLE/ngx_cache_purge](https://github.com/FRiCKLE/ngx_cache_purge) - nginx module which adds ability to purge content from FastCGI, proxy, SCGI and uWSGI caches.

* [rswier/swieros](https://github.com/rswier/swieros) - A tiny hand crafted CPU emulator, C compiler, and Operating System

* [HVML/PurC](https://github.com/HVML/PurC) - The prime HVML interpreter for C Language.

* [dev47apps/droidcam-linux-client](https://github.com/dev47apps/droidcam-linux-client) - GNU/Linux/nix client for DroidCam

* [skvadrik/re2c](https://github.com/skvadrik/re2c) - Lexer generator for C, C++, Go and Rust.

* [susam/uncap](https://github.com/susam/uncap) - Map Caps Lock to Escape or any key to any key

* [LordNoteworthy/cpu-internals](https://github.com/LordNoteworthy/cpu-internals) - Intel / AMD CPU Internals

* [laruence/yaconf](https://github.com/laruence/yaconf) - A PHP Persistent Configurations Container

* [brutal-org/brutal](https://github.com/brutal-org/brutal) - 🏢 An operating system inspired by brutalist design that combines the ideals of UNIX from the 1970s with modern technology and engineering

* [tronkko/dirent](https://github.com/tronkko/dirent) - C/C++ library for retrieving information on files and directories

* [arthepsy/CVE-2021-4034](https://github.com/arthepsy/CVE-2021-4034) - PoC for PwnKit: Local Privilege Escalation Vulnerability in polkit’s pkexec (CVE-2021-4034)

* [libretro/common-shaders](https://github.com/libretro/common-shaders) - Collection of commonly used Cg shaders. These shaders are usable by either HLSL and/or Cg runtime compilers. The cg2glsl script will translate most of these into GLSL shaders.

* [lxc/lxcfs](https://github.com/lxc/lxcfs) - FUSE filesystem for LXC

* [dddrrreee/cs140e-20win](https://github.com/dddrrreee/cs140e-20win) - cs140e course materials.

* [kkkgo/vlmcsd](https://github.com/kkkgo/vlmcsd) - 🔑Portable open-source KMS Emulator in C

* [vlm/asn1c](https://github.com/vlm/asn1c) - The ASN.1 Compiler

* [hairrrrr/C-CrashCourse](https://github.com/hairrrrr/C-CrashCourse) - C语言教程+博客+代码演示+课程设计。 帮助初学者更好的理解 C 难点，提升代码量！ For beginners:C tuition/self-learning

* [ClimbSnail/HoloCubic_AIO](https://github.com/ClimbSnail/HoloCubic_AIO) - HoloCubic超多功能AIO固件 基于esp32-arduino的天气时钟、相册、视频播放、桌面投屏、web服务、bilibili粉丝等

* [miao1007/Openwrt-NetKeeper](https://github.com/miao1007/Openwrt-NetKeeper) - [C/C++] Run Netkeeper on OpenWrt Device

* [WebSpiderUtils/verification_code](https://github.com/WebSpiderUtils/verification_code) - 验证码研究破解心得记录。包含网易易盾，阿里云验证码，极验验证码，通用汉字识别，梦幻西游验证等主流验证码破解。包含点按验证码、点选验证、语序点选等等。已更新极验验证码、企业公示网/工商/文书采集系统、极验打码接口。

* [gnbdev/opengnb](https://github.com/gnbdev/opengnb) - GNB is open source de-centralized SDVN to achieve layer3 network via p2p with the ultimate capability of NAT Traversal.GNB是一个开源的去中心化的具有极致内网穿透能力的通过P2P进行三层网络交换的SDVN。

* [hfiref0x/TDL](https://github.com/hfiref0x/TDL) - Driver loader for bypassing Windows x64 Driver Signature Enforcement

* [uTox/uTox](https://github.com/uTox/uTox) - µTox the lightest and fluffiest Tox client

* [OpenCPN/OpenCPN](https://github.com/OpenCPN/OpenCPN) - A concise ChartPlotter/Navigator. A cross-platform ship-borne GUI application supporting * GPS/GPDS Postition Input * BSB Raster Chart Display * S57 Vector ENChart Display * AIS Input Decoding * Waypoint Autopilot Navigation

* [vtereshkov/umka-lang](https://github.com/vtereshkov/umka-lang) - Umka: a statically typed embeddable scripting language

* [JuliaStrings/utf8proc](https://github.com/JuliaStrings/utf8proc) - a clean C library for processing UTF-8 Unicode data

* [JLErvin/berry](https://github.com/JLErvin/berry) - :strawberry: A healthy, byte-sized window manager

* [MapServer/MapServer](https://github.com/MapServer/MapServer) - Source code of the MapServer project.  Please submit pull requests to the 'main' branch.

* [awslabs/amazon-kinesis-video-streams-webrtc-sdk-c](https://github.com/awslabs/amazon-kinesis-video-streams-webrtc-sdk-c) - Amazon Kinesis Video Streams Webrtc SDK is for developers to install and customize realtime communication between devices and enable secure streaming of video, audio to Kinesis Video Streams.

* [jserv/amacc](https://github.com/jserv/amacc) - Small C Compiler generating ELF executable Arm architecture, supporting JIT execution

* [rswinkle/PortableGL](https://github.com/rswinkle/PortableGL) - An implementation of OpenGL 3.x-ish in clean C

* [schweikert/fping](https://github.com/schweikert/fping) - High performance ping tool

* [scrt/avcleaner](https://github.com/scrt/avcleaner) - C/C++ source obfuscator for antivirus bypass

* [RedisLabs/redis-cluster-proxy](https://github.com/RedisLabs/redis-cluster-proxy) - A proxy for Redis clusters.

* [JuliaPoo/Artfuscator](https://github.com/JuliaPoo/Artfuscator) - A C compiler targeting an artistically pleasing nightmare for reverse engineers

* [examplecode/mproxy](https://github.com/examplecode/mproxy) - c 语言实现的一个最小的http代理，支持翻墙

* [sheepdog/sheepdog](https://github.com/sheepdog/sheepdog) - Distributed Storage System for QEMU

* [tekknolagi/carp](https://github.com/tekknolagi/carp) - "interesting" VM in C. Let's see how this goes.

* [OpenPrinting/cups](https://github.com/OpenPrinting/cups) - OpenPrinting CUPS Sources

* [Crypto-toolbox/HFT-Orderbook](https://github.com/Crypto-toolbox/HFT-Orderbook) - Limit Order Book for high-frequency trading (HFT), as described by WK Selph, implemented in Python3 and C

* [Blosc/c-blosc](https://github.com/Blosc/c-blosc) - A blocking, shuffling and loss-less compression library that can be faster than `memcpy()`.

* [pytorch/cpuinfo](https://github.com/pytorch/cpuinfo) - CPU INFOrmation library (x86/x86-64/ARM/ARM64, Linux/Windows/Android/macOS/iOS)

* [nicklockwood/FastCoding](https://github.com/nicklockwood/FastCoding) - A faster and more flexible binary file format replacement for NSCoding, Property Lists and JSON

* [aws/aws-iot-device-sdk-embedded-C](https://github.com/aws/aws-iot-device-sdk-embedded-C) - SDK for connecting to AWS IoT from a device using embedded C.

* [zpl-c/zpl](https://github.com/zpl-c/zpl) - 📐 Pushing the boundaries of simplicity

* [NaruseMioShirakana/DragonianVoice](https://github.com/NaruseMioShirakana/DragonianVoice) - 多个SVC/TTS的C++推理库

* [mjakeman/extension-manager](https://github.com/mjakeman/extension-manager) - A utility for browsing and installing GNOME Shell Extensions.

* [cvxopt/cvxopt](https://github.com/cvxopt/cvxopt) - CVXOPT -- Python Software for Convex Optimization

* [lfos/calcurse](https://github.com/lfos/calcurse) - A text-based calendar and scheduling application

* [danielealbano/cachegrand](https://github.com/danielealbano/cachegrand) - cachegrand - a modern data ingestion, processing and serving platform built for today's hardware

* [OpenIDC/mod_auth_openidc](https://github.com/OpenIDC/mod_auth_openidc) - OpenID Certified™ OpenID Connect Relying Party implementation for Apache HTTP Server 2.x

* [emqx/neuron](https://github.com/emqx/neuron) - Open source industrial IoT connectivity server

* [tmewett/BrogueCE](https://github.com/tmewett/BrogueCE) - Brogue: Community Edition - a community-lead fork of the much-loved minimalist roguelike game

* [travisvroman/kohi](https://github.com/travisvroman/kohi) - A game engine made as part of the Kohi Game Engine series on YouTube (and Twitch!), where we make a game engine from the ground up using C and Vulkan.

* [uclouvain/openjpeg](https://github.com/uclouvain/openjpeg) - Official repository of the OpenJPEG project

* [wolkykim/qlibc](https://github.com/wolkykim/qlibc) - qLibc is a simple and yet powerful C library providing generic data structures and algorithms.

* [wangkuiwu/datastructs_and_algorithm](https://github.com/wangkuiwu/datastructs_and_algorithm) - Data struct and algorithm introduction and implementation in C/C++/Java.

* [svenstaro/rofi-calc](https://github.com/svenstaro/rofi-calc) - 🖩 Do live calculations in rofi!

* [ridiculousfish/cdecl-blocks](https://github.com/ridiculousfish/cdecl-blocks) - The venerable cdecl, with Apple blocks support

* [orangeduck/tgc](https://github.com/orangeduck/tgc) - A Tiny Garbage Collector for C

* [floooh/chips](https://github.com/floooh/chips) - 8-bit chip and system emulators in standalone C headers

* [timwr/CVE-2016-5195](https://github.com/timwr/CVE-2016-5195) - CVE-2016-5195 (dirtycow/dirtyc0w) proof of concept for Android

* [jgarzik/cpuminer](https://github.com/jgarzik/cpuminer) - CPU miner for bitcoin

* [dovecot/core](https://github.com/dovecot/core) - Dovecot mail server

* [graphitemaster/incbin](https://github.com/graphitemaster/incbin) - Include binary files in C/C++

* [royhills/arp-scan](https://github.com/royhills/arp-scan) - The ARP Scanner

* [RainbowRoad1/Cgame](https://github.com/RainbowRoad1/Cgame) - 一些用C编写的小游戏, 14行贪吃蛇  22行2048  22行俄罗斯方块  25行扫雷...以及各种小玩意

* [troglobit/inadyn](https://github.com/troglobit/inadyn) - In-a-Dyn is a dynamic DNS client with multiple SSL/TLS library support

* [halfer53/winix](https://github.com/halfer53/winix) - A UNIX-style Operating System for the Waikato RISC Architecture Microprocessor (WRAMP)

* [wangyi-fudan/wyhash](https://github.com/wangyi-fudan/wyhash) - The FASTEST QUALITY hash function, random number generators (PRNG) and hash map.

* [pret/pokefirered](https://github.com/pret/pokefirered) - Decompilation of Pokémon FireRed/LeafGreen

* [canonical/raft](https://github.com/canonical/raft) - Unmaintained C implementation of the Raft consensus protocol

* [alibaba/ApsaraCache](https://github.com/alibaba/ApsaraCache) - archived | ApsaraCache is a Redis branch originated from Alibaba Group.

* [QuantumLeaps/qpc](https://github.com/QuantumLeaps/qpc) - QP/C Real-Time Embedded Framework/RTOS for embedded systems based on active objects (actors) and hierarchical state machines

* [olilarkin/wdl-ol](https://github.com/olilarkin/wdl-ol) - Enhanced version of Cockos' iPlug - A simple-to-use C++ framework for developing cross platform audio plugins and targeting multiple plugin APIs with the same code. VST / VST3 / Audiounit / RTAS / AAX (Native) formats supported. NOTE: THIS IS OBSOLETE, PLEASE SEE IPLUG2:

* [mempodippy/vlany](https://github.com/mempodippy/vlany) - Linux LD_PRELOAD rootkit (x86 and x86_64 architectures)

* [yaml/libyaml](https://github.com/yaml/libyaml) - Canonical source repository for LibYAML

* [Duet3D/RepRapFirmware](https://github.com/Duet3D/RepRapFirmware) - OO C++ RepRap Firmware

* [psankar/simplefs](https://github.com/psankar/simplefs) - A simple, kernel-space, on-disk filesystem from the scratch

* [FrameworkComputer/EmbeddedController](https://github.com/FrameworkComputer/EmbeddedController) - Embedded Controller firmware for the Framework Laptop

* [eembc/coremark](https://github.com/eembc/coremark) - CoreMark® is an industry-standard benchmark that measures the performance of central processing units (CPU) and embedded microcrontrollers (MCU).

* [ianlancetaylor/libbacktrace](https://github.com/ianlancetaylor/libbacktrace) - A C library that may be linked into a C/C++ program to produce symbolic backtraces

* [lavoiesl/osx-cpu-temp](https://github.com/lavoiesl/osx-cpu-temp) - Outputs current CPU temperature for OSX

* [WojciechMula/pyahocorasick](https://github.com/WojciechMula/pyahocorasick) - Python module (C extension and plain python) implementing Aho-Corasick algorithm

* [RJ/ketama](https://github.com/RJ/ketama) - C library for consistent hashing, and langauge bindings

* [mpx/lua-cjson](https://github.com/mpx/lua-cjson) - Lua CJSON is a fast JSON encoding/parsing module for Lua

* [CN-annotation-team/redis7.0-chinese-annotated](https://github.com/CN-annotation-team/redis7.0-chinese-annotated) - Redis 7.0.5 版本——中文注释，持续更新！欢迎参与本项目！🍭🍭🍭

* [vitoplantamura/BugChecker](https://github.com/vitoplantamura/BugChecker) - SoftICE-like kernel debugger for Windows 11

* [libass/libass](https://github.com/libass/libass) - libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format.

* [RandyGaul/qu3e](https://github.com/RandyGaul/qu3e) - Lightweight and Simple 3D Open Source Physics Engine in C++

* [hfiref0x/VBoxHardenedLoader](https://github.com/hfiref0x/VBoxHardenedLoader) - VirtualBox VM detection mitigation loader

* [jgmenu/jgmenu](https://github.com/jgmenu/jgmenu) - An X11 menu

* [pfultz2/Cloak](https://github.com/pfultz2/Cloak) - A mini-preprocessor library to demostrate the recursive capabilites of the preprocessor

* [am0nsec/HellsGate](https://github.com/am0nsec/HellsGate) - Original C Implementation of the Hell's Gate VX Technique

* [maxmind/libmaxminddb](https://github.com/maxmind/libmaxminddb) - C library for the MaxMind DB file format

* [nurupo/vlc-pause-click-plugin](https://github.com/nurupo/vlc-pause-click-plugin) - Plugin for VLC that pauses/plays video on mouse click

* [yangminz/bcst_csapp](https://github.com/yangminz/bcst_csapp) - A C language repo to implement CSAPP

* [happyfish100/libfastcommon](https://github.com/happyfish100/libfastcommon) - c common functions library extracted from my open source project FastDFS. this library is very simple and stable.  functions including: string, logger, chain, hash, socket, ini file reader, base64 encode / decode, url encode / decode, fast timer, skiplist, object pool etc. detail info please see the c header files.

* [wlanjie/trinity](https://github.com/wlanjie/trinity) - android video record editor muxer sdk

* [varnish/Varnish-Cache](https://github.com/varnish/Varnish-Cache) - Moved. New address: https://github.com/varnishcache/varnish-cache/

* [Billy-Ellis/Exploit-Challenges](https://github.com/Billy-Ellis/Exploit-Challenges) - A collection of vulnerable ARM binaries for practicing exploit development

* [analogdevicesinc/no-OS](https://github.com/analogdevicesinc/no-OS) - Software drivers in C for systems without an operating system

* [libgd/libgd](https://github.com/libgd/libgd) - GD Graphics Library

* [HerculesWS/Hercules](https://github.com/HerculesWS/Hercules) - Hercules is a collaborative software development project revolving around the creation of a robust massively multiplayer online role playing game (MMORPG) server package. Written in C, the program is very versatile and provides NPCs, warps and modifications. The project is jointly managed by a group of volunteers located around the world as well as a tremendous community providing QA and support. Hercules is a continuation of the original Athena project.

* [oracle/python-cx_Oracle](https://github.com/oracle/python-cx_Oracle) - Python interface to Oracle Database now superseded by python-oracledb

* [larmel/lacc](https://github.com/larmel/lacc) - A simple, self-hosting C compiler

* [cztomczak/cef2go](https://github.com/cztomczak/cef2go) - Go lang bindings for the Chromium Embedded Framework (CEF)

* [ocornut/imgui_club](https://github.com/ocornut/imgui_club) - Nice things to use along dear imgui

* [randrew/layout](https://github.com/randrew/layout) - Single-file library for calculating 2D UI layouts using stacking boxes. Compiles as C99 or C++.

* [cxong/cdogs-sdl](https://github.com/cxong/cdogs-sdl) - Classic overhead run-and-gun game

* [galkahana/PDF-Writer](https://github.com/galkahana/PDF-Writer) - High performance library for creating, modiyfing and parsing PDF files in C++

* [septag/sx](https://github.com/septag/sx) - Portable base library for C programmers, designed for performance and simplicity.

* [weston-embedded/uC-OS3](https://github.com/weston-embedded/uC-OS3) - µC/OS-III is a preemptive, highly portable, and scalable real-time kernel. Designed for ease of use on a huge number of CPU architectures.

* [MrNeRF/gaussian-splatting-cuda](https://github.com/MrNeRF/gaussian-splatting-cuda) - 3D Gaussian Splatting, reimagined: Unleashing unmatched speed with C++ and CUDA from the ground up!

* [alessandrofrancesconi/gimp-plugin-bimp](https://github.com/alessandrofrancesconi/gimp-plugin-bimp) - BIMP. Batch Image Manipulation Plugin for GIMP.

* [CCareaga/heap_allocator](https://github.com/CCareaga/heap_allocator) - A simple heap memory allocator in ~200 lines.

* [jimon/osx_app_in_plain_c](https://github.com/jimon/osx_app_in_plain_c) - A simple showcase how to create a simple OS X app in plain C without any Objective-C

* [alibaba/nginx-http-concat](https://github.com/alibaba/nginx-http-concat) - A Nginx module for concatenating files in a given context: CSS and JS files usually

* [prideout/par](https://github.com/prideout/par) - single-file C libraries from Philip Allan Rideout

* [xorg62/tty-clock](https://github.com/xorg62/tty-clock) - Clock using lib ncurses

* [LekKit/RVVM](https://github.com/LekKit/RVVM) - The RISC-V Virtual Machine

* [P-p-H-d/mlib](https://github.com/P-p-H-d/mlib) - Library of generic and type safe containers in pure C language (C99 or C11) for a wide collection of container (comparable to the C++ STL).

* [cnlohr/ch32v003fun](https://github.com/cnlohr/ch32v003fun) - Open source minimal stack for the ch32 line of WCH processors, including the ch32v003, a 10¢ 48 MHz RISC-V Microcontroller - as well as many other chips within the ch32v/x line.

* [richgel999/fpng](https://github.com/richgel999/fpng) - Super fast C++ .PNG writer/reader

* [henrypp/chrlauncher](https://github.com/henrypp/chrlauncher) - Small and very fast portable launcher and updater for Chromium.

* [AravisProject/aravis](https://github.com/AravisProject/aravis) - A vision library for genicam based cameras

* [zyearn/zaver](https://github.com/zyearn/zaver) - Yet another fast and efficient HTTP server

* [kroitor/gjk.c](https://github.com/kroitor/gjk.c) - Gilbert-Johnson-Keerthi (GJK) collision detection algorithm in 200 lines of clean plain C

* [Orc/discount](https://github.com/Orc/discount) - My C implementation of John Gruber's Markdown markup language

* [deanmao/node-chimera](https://github.com/deanmao/node-chimera) - A new kind of headless webkit integration for nodejs; a great alternative to phantomjs.

* [mbrossard/threadpool](https://github.com/mbrossard/threadpool) - A simple C Thread pool implementation

* [csete/gpredict](https://github.com/csete/gpredict) - Gpredict satellite tracking application

* [nlsandler/write_a_c_compiler](https://github.com/nlsandler/write_a_c_compiler) - Test suite to help you write your own C compiler

* [Hirrolot/metalang99](https://github.com/Hirrolot/metalang99) - Full-blown preprocessor metaprogramming

* [usrbinnc/netcat-cpi-kernel-module](https://github.com/usrbinnc/netcat-cpi-kernel-module) - Kernel module edition of the Cycles Per Instruction (2014) album.

* [MaJerle/lwrb](https://github.com/MaJerle/lwrb) - Lightweight generic ring buffer manager library

* [STMicroelectronics/STM32CubeF4](https://github.com/STMicroelectronics/STM32CubeF4) - STM32Cube MCU Full Package for the STM32F4 series - (HAL + LL Drivers, CMSIS Core, CMSIS Device, MW libraries plus a set of Projects running on all boards provided by ST (Nucleo, Evaluation and Discovery Kits))

* [ngtcp2/nghttp3](https://github.com/ngtcp2/nghttp3) - HTTP/3 library written in C

* [FreeApophis/TrueCrypt](https://github.com/FreeApophis/TrueCrypt) - This repository applies all Versions of the Original TrueCrypt Source Files in order

* [yulingtianxia/BlockHook](https://github.com/yulingtianxia/BlockHook) - Hook Objective-C blocks. A powerful AOP tool.

* [aperezdc/ngx-fancyindex](https://github.com/aperezdc/ngx-fancyindex) - Fancy indexes module for the Nginx web server

* [fastfetch-cli/fastfetch](https://github.com/fastfetch-cli/fastfetch) - Like neofetch, but much faster because written mostly in C.

* [confluentinc/librdkafka](https://github.com/confluentinc/librdkafka) - The Apache Kafka C/C++ library

* [greenbone/openvas-scanner](https://github.com/greenbone/openvas-scanner) - This repository contains the scanner component for Greenbone Community Edition.

* [zrythm/zrythm](https://github.com/zrythm/zrythm) - a highly automated and intuitive digital audio workstation - official mirror

* [MrForExample/ComfyUI-3D-Pack](https://github.com/MrForExample/ComfyUI-3D-Pack) - An extensive node suite that enables ComfyUI to process 3D inputs (Mesh & UV Texture, etc) using cutting edge algorithms (3DGS, NeRF, etc.)

* [cycfi/elements](https://github.com/cycfi/elements) - Elements C++ GUI library

* [mjansson/rpmalloc](https://github.com/mjansson/rpmalloc) - Public domain cross platform lock free thread caching 16-byte aligned memory allocator implemented in C

* [ucb-bar/chipyard](https://github.com/ucb-bar/chipyard) - An Agile RISC-V SoC Design Framework with in-order cores, out-of-order cores, accelerators, and more

* [simondlevy/TinyEKF](https://github.com/simondlevy/TinyEKF) - Lightweight C/C++ Extended Kalman Filter with Python for prototyping

* [torproject/tor](https://github.com/torproject/tor) - unofficial git repo -- report bugs/issues/pull requests on https://gitlab.torproject.org/ --

* [ZerBea/hcxtools](https://github.com/ZerBea/hcxtools) - Portable (that doesn't include proprietary/commercial operating systems) solution for conversion of cap/pcap/pcapng (gz compressed) WiFi dump files to hashcat formats (recommended by hashcat) and to John the Ripper formats. hcx: h = hash, c = convert and calculate candidates, x = different hashtypes

* [amnezia-vpn/amnezia-client](https://github.com/amnezia-vpn/amnezia-client) - Amnezia VPN Client (Desktop+Mobile)

* [UnknownShadow200/ClassiCube](https://github.com/UnknownShadow200/ClassiCube) - Custom Minecraft Classic / ClassiCube client written in C  from scratch (formerly ClassicalSharp in C#)

* [ashvardanian/StringZilla](https://github.com/ashvardanian/StringZilla) - Up to 10x faster string search, split, sort, and shuffle for long strings and multi-gigabyte files in Python and C, leveraging SIMD with just a few lines of Arm Neon and x86 AVX2 & AVX-512 intrinsics 🦖

* [ggerganov/llama.cpp](https://github.com/ggerganov/llama.cpp) - Port of Facebook's LLaMA model in C/C++

* [networkprotocol/yojimbo](https://github.com/networkprotocol/yojimbo) - A network library for client/server games written in C++

* [hackerschoice/thc-tips-tricks-hacks-cheat-sheet](https://github.com/hackerschoice/thc-tips-tricks-hacks-cheat-sheet) - Various tips & tricks

* [nullsecuritynet/tools](https://github.com/nullsecuritynet/tools) - Security and Hacking Tools, Exploits, Proof of Concepts, Shellcodes, Scripts.

* [richgel999/miniz](https://github.com/richgel999/miniz) - miniz: Single C source file zlib-replacement library, originally from code.google.com/p/miniz

* [hfiref0x/KDU](https://github.com/hfiref0x/KDU) - Kernel Driver Utility

* [hewei2001/HITSZ-OpenCS](https://github.com/hewei2001/HITSZ-OpenCS) - 哈尔滨工业大学（深圳）计算机专业课程攻略 | Guidance for courses in Department of Computer Science, Harbin Institute of Technology (Shenzhen)

* [huaiyukeji/verification_code](https://github.com/huaiyukeji/verification_code) - 验证码研究破解心得记录。包含网易易盾，阿里云验证码，极验验证码，通用汉字识别，梦幻西游验证等主流验证码破解。包含点按验证码、点选验证、语序点选等等。已更新极验验证码、企业公示网/工商/文书采集系统、极验打码接口。

* [laruence/yac](https://github.com/laruence/yac) - A fast, lock-free, shared memory user data cache for PHP

* [zfl9/chinadns-ng](https://github.com/zfl9/chinadns-ng) - chinadns 重构增强版，支持黑白名单，ipset/nftset

* [skullchap/chadstr](https://github.com/skullchap/chadstr) - Chad Strings - The Chad way to handle strings in C.

* [LeechanX/Data-Structures-and-Algorithms-in-C](https://github.com/LeechanX/Data-Structures-and-Algorithms-in-C) - 所有基础数据结构和算法的纯C语言实现，如各自排序、链表、栈、队列、各种树以及应用、图算法、字符串匹配算法、回溯、并查集等，献丑了

* [jianfengye/nginx-1.0.14_comment](https://github.com/jianfengye/nginx-1.0.14_comment) - nginx源码中文注释版

* [halayli/lthread](https://github.com/halayli/lthread) - lthread, a multicore enabled coroutine library written in C

* [kiibohd/controller](https://github.com/kiibohd/controller) - Kiibohd Controller

* [NouamaneTazi/bloomz.cpp](https://github.com/NouamaneTazi/bloomz.cpp) - C++ implementation for BLOOM

* [pvaret/rtl8192cu-fixes](https://github.com/pvaret/rtl8192cu-fixes) - Realtek 8192 chipset driver, ported to kernel 3.11.

* [qrush/unix](https://github.com/qrush/unix) - Mirror of the Restoration of 1st Edition UNIX kernel sources from pdf document.

* [mptre/pick](https://github.com/mptre/pick) - A fuzzy search tool for the command-line

* [eleme/corvus](https://github.com/eleme/corvus) - A fast and lightweight Redis Cluster Proxy for Redis 3.0

* [hexagonal-sun/bic](https://github.com/hexagonal-sun/bic) - A C interpreter and API explorer.

* [dariomanesku/cmft](https://github.com/dariomanesku/cmft) - Cross-platform open-source command-line cubemap filtering tool.

* [chrisjmccormick/word2vec_commented](https://github.com/chrisjmccormick/word2vec_commented) - Commented (but unaltered) version of original word2vec C implementation.

* [mongodb/mongo-c-driver](https://github.com/mongodb/mongo-c-driver) - The Official MongoDB driver for C language

* [charliegerard/Epoc.js](https://github.com/charliegerard/Epoc.js) - Node.js addon for the Emotiv C++ SDK

* [hfiref0x/UPGDSED](https://github.com/hfiref0x/UPGDSED) - Universal PatchGuard and Driver Signature Enforcement Disable

* [jwasham/practice-c](https://github.com/jwasham/practice-c) - Part of my daily plan for studying C.

* [everettjf/AppleTrace](https://github.com/everettjf/AppleTrace) - 🍎Objective C Method Tracing Call Chart

* [n64dev/cen64](https://github.com/n64dev/cen64) - Cycle-Accurate Nintendo 64 Emulator

* [Interrupt/systemshock](https://github.com/Interrupt/systemshock) - Shockolate - A minimalist and cross platform System Shock source port.

* [stawel/cheali-charger](https://github.com/stawel/cheali-charger) - cheap lipo charger

* [apache/mynewt-core](https://github.com/apache/mynewt-core) - An OS to build, deploy and securely manage billions of devices

* [NaruseMioShirakana/MoeVoiceStudio](https://github.com/NaruseMioShirakana/MoeVoiceStudio) - 一个使用C++编写的音频处理软件

* [septag/rizz](https://github.com/septag/rizz) - Small C game development framework

* [jnz/q3vm](https://github.com/jnz/q3vm) - Q3VM - Single file (vm.c) bytecode virtual machine/interpreter for C-language input

* [GenericMappingTools/gmt](https://github.com/GenericMappingTools/gmt) - The Generic Mapping Tools

* [mikeryan/crackle](https://github.com/mikeryan/crackle) - Crack and decrypt BLE encryption

* [cxong/tinydir](https://github.com/cxong/tinydir) - Lightweight, portable and easy to integrate C directory and file reader

* [groonga/groonga](https://github.com/groonga/groonga) - An embeddable fulltext search engine. Groonga is the successor project to Senna.

* [TulipCharts/tulipindicators](https://github.com/TulipCharts/tulipindicators) - Technical Analysis Indicator Function Library in C

* [justinmeza/lci](https://github.com/justinmeza/lci) - A LOLCODE interpreter written in C.

* [ccxvii/mujs](https://github.com/ccxvii/mujs) - An embeddable Javascript interpreter in C.

* [nil0x42/duplicut](https://github.com/nil0x42/duplicut) - Remove duplicates from MASSIVE wordlist, without sorting it (for dictionary-based password cracking)

* [lemire/Code-used-on-Daniel-Lemire-s-blog](https://github.com/lemire/Code-used-on-Daniel-Lemire-s-blog) - This is a repository for the code posted on my blog

* [obgm/libcoap](https://github.com/obgm/libcoap) - A CoAP (RFC 7252) implementation in C

* [NMSSH/NMSSH](https://github.com/NMSSH/NMSSH) - NMSSH is an Objective-C wrapper for libssh2, with a sweet API.

* [adsr/mle](https://github.com/adsr/mle) - flexible terminal-based text editor (C)

* [JayDDee/cpuminer-opt](https://github.com/JayDDee/cpuminer-opt) - Optimized multi algo CPU miner

* [Eugnis/spectre-attack](https://github.com/Eugnis/spectre-attack) - Example of using revealed "Spectre" exploit (CVE-2017-5753 and CVE-2017-5715)

* [riolet/rix](https://github.com/riolet/rix) - Rix language combines the power of C language and the convenience of a high level language

* [plantegg/programmer_case](https://github.com/plantegg/programmer_case) - 程序员案例集锦

* [yourtion/LearningMasteringAlgorithms-C](https://github.com/yourtion/LearningMasteringAlgorithms-C) - Mastering Algorithms with C 《算法精解：C语言描述》源码及Xcode工程、Linux工程

* [michaelforney/samurai](https://github.com/michaelforney/samurai) - ninja-compatible build tool written in C

* [Robert-van-Engelen/tinylisp](https://github.com/Robert-van-Engelen/tinylisp) - Lisp in 99 lines of C and how to write one yourself. Includes 20 Lisp primitives, garbage collection and REPL. Includes tail-call optimized versions for speed and reduced memory use.

* [wangbojing/NtyCo](https://github.com/wangbojing/NtyCo) - 纯c版本的协程实现，汇编切换，调度器实现，包含服务器端案例，客户端并发测试案例

* [samtools/htslib](https://github.com/samtools/htslib) - C library for high-throughput sequencing data formats

* [libimobiledevice/ifuse](https://github.com/libimobiledevice/ifuse) - A fuse filesystem to access the contents of iOS devices

* [balde/balde](https://github.com/balde/balde) - A microframework for C based on GLib.

* [nxrighthere/ENet-CSharp](https://github.com/nxrighthere/ENet-CSharp) - Reliable UDP networking library

* [ged/ruby-pg](https://github.com/ged/ruby-pg) - A PostgreSQL client library for Ruby

* [diegocr/netcat](https://github.com/diegocr/netcat) - NetCat for Windows

* [vkoskiv/c-ray](https://github.com/vkoskiv/c-ray) - c-ray is a small, simple path tracer written in C

* [loadzero/si78c](https://github.com/loadzero/si78c) - si78c is a memory accurate reimplementation of Space Invaders in C.

* [nih-at/libzip](https://github.com/nih-at/libzip) - A C library for reading, creating, and modifying zip archives.

* [felixangell/mac](https://github.com/felixangell/mac) - bytecode interpreter in c (blog post)

* [jergusg/k380-function-keys-conf](https://github.com/jergusg/k380-function-keys-conf) - Make function keys default on Logitech k380 bluetooth keyboard

* [powturbo/TurboPFor-Integer-Compression](https://github.com/powturbo/TurboPFor-Integer-Compression) - Fastest Integer Compression

* [armon/libart](https://github.com/armon/libart) - Adaptive Radix Trees implemented in C

* [oleganza/CoreBitcoin](https://github.com/oleganza/CoreBitcoin) - Awesome Bitcoin toolkit for ObjC and Swift

* [SilverRainZ/OS67](https://github.com/SilverRainZ/OS67) - An unix-like toy kernel

* [allinurl/gwsocket](https://github.com/allinurl/gwsocket) - fast, standalone, language-agnostic WebSocket server RFC6455 compliant

* [Keruspe/GPaste](https://github.com/Keruspe/GPaste) - Clipboard management system

* [pret/pokeruby](https://github.com/pret/pokeruby) - Decompilation of Pokémon Ruby/Sapphire

* [audiohacked/OpenCorsairLink](https://github.com/audiohacked/OpenCorsairLink) - Linux and Mac OS support for the CorsairLink Devices

* [wmutils/core](https://github.com/wmutils/core) - Set of window manipulation tools

* [berry-lang/berry](https://github.com/berry-lang/berry) - A ultra-lightweight embedded scripting language optimized for microcontrollers.

* [socketry/cool.io](https://github.com/socketry/cool.io) - Simple evented I/O for Ruby (but please check out Celluloid::IO instead)

* [scandum/blitsort](https://github.com/scandum/blitsort) - Blitsort is an in-place stable adaptive rotate mergesort / quicksort.

* [riolet/WAFer](https://github.com/riolet/WAFer) - WAFer is a C language-based software platform for scalable server-side and networking applications. Think node.js for C programmers.

* [munificent/mark-sweep](https://github.com/munificent/mark-sweep) - A simple mark-sweep garbage collector in C

* [lexborisov/Modest](https://github.com/lexborisov/Modest) - Modest is a fast HTML renderer implemented as a pure C99 library with no outside dependencies.

* [openglsuperbible/sb7code](https://github.com/openglsuperbible/sb7code) - Source code and supporting material for the 7th Edition of OpenGL SuperBible

* [Unity-Technologies/NativeRenderingPlugin](https://github.com/Unity-Technologies/NativeRenderingPlugin) - C++ Rendering Plugin example for Unity

* [skarnet/s6](https://github.com/skarnet/s6) - The s6 supervision suite.

* [moonlight-stream/moonlight-chrome](https://github.com/moonlight-stream/moonlight-chrome) - GameStream client for ChromeOS

* [lpereira/hardinfo](https://github.com/lpereira/hardinfo) - System profiler and benchmark tool for Linux systems

* [eclipse-cyclonedds/cyclonedds](https://github.com/eclipse-cyclonedds/cyclonedds) - Eclipse Cyclone DDS project

* [overmighty/i-use-arch-btw](https://github.com/overmighty/i-use-arch-btw) - "I use Arch btw" but it's a Turing-complete programming language.

* [CongducPham/LowCostLoRaGw](https://github.com/CongducPham/LowCostLoRaGw) - Low-cost LoRa IoT & gateway with SX12XX (SX1261/62/68; SX1272/76/77/78/79; SX1280/81), RaspberryPI and Arduino boards

* [jgm/peg-markdown](https://github.com/jgm/peg-markdown) - An implementation of markdown in C, using a PEG grammar

* [tpoechtrager/cctools-port](https://github.com/tpoechtrager/cctools-port) - Apple cctools port for Linux and *BSD

* [managarm/mlibc](https://github.com/managarm/mlibc) - Portable C standard library

* [Exim/exim](https://github.com/Exim/exim) - Exim Mail Transport Agent - source, testsuite and documentation

* [crash-utility/crash](https://github.com/crash-utility/crash) - Linux kernel crash utility

* [sepfy/libpeer](https://github.com/sepfy/libpeer) - WebRTC Library for IoT/Embedded Device using C

* [libtrading/libtrading](https://github.com/libtrading/libtrading) - Libtrading, an ultra low-latency trading connectivity library for C and C++.

* [pbatard/uefi-ntfs](https://github.com/pbatard/uefi-ntfs) - UEFI:NTFS - Boot NTFS or exFAT partitions from UEFI

* [cesanta/frozen](https://github.com/cesanta/frozen) - JSON parser and generator for C/C++ with scanf/printf like interface. Targeting embedded systems.

* [cbuchner1/CudaMiner](https://github.com/cbuchner1/CudaMiner) - a CUDA accelerated litecoin mining application based on pooler's CPU miner

* [alekmaul/pvsneslib](https://github.com/alekmaul/pvsneslib) - PVSnesLib : A small, open and free development kit for the Nintendo SNES

* [xxyzz/ostep-hw](https://github.com/xxyzz/ostep-hw) - Operating Systems: Three Easy Pieces(OSTEP) homework and project solutions

* [gabriel/yajl-objc](https://github.com/gabriel/yajl-objc) - Objective-C bindings for YAJL (Yet Another JSON Library) C library

* [ScottyBauer/Android_Kernel_CVE_POCs](https://github.com/ScottyBauer/Android_Kernel_CVE_POCs) - A list of my CVE's with POCs

* [phoboslab/pl_mpeg](https://github.com/phoboslab/pl_mpeg) - Single file C library for decoding MPEG1 Video and MP2 Audio

* [pbatard/rufus](https://github.com/pbatard/rufus) - The Reliable USB Formatting Utility

* [vlcn-io/cr-sqlite](https://github.com/vlcn-io/cr-sqlite) - Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite

* [lionsoul2014/ip2region](https://github.com/lionsoul2014/ip2region) - Ip2region (2.0 - xdb) is a offline IP address manager framework and locator, support billions of data segments, ten microsecond searching performance. xdb engine implementation for many programming languages

* [inotify-tools/inotify-tools](https://github.com/inotify-tools/inotify-tools) -   inotify-tools is a C library and a set of command-line programs providing a simple interface to inotify.

* [catboost/catboost](https://github.com/catboost/catboost) - A fast, scalable, high performance Gradient Boosting on Decision Trees library, used for ranking, classification, regression and other machine learning tasks for Python, R, Java, C++. Supports computation on CPU and GPU.

* [crownengine/crown](https://github.com/crownengine/crown) - The flexible game engine.

* [yamashi/CyberEngineTweaks](https://github.com/yamashi/CyberEngineTweaks) - Cyberpunk 2077 tweaks, hacks and scripting framework

* [sisong/HDiffPatch](https://github.com/sisong/HDiffPatch) - a C\C++ library and command-line tools for Diff & Patch between binary files or directories(folder); cross-platform; runs fast; create small delta/differential; support large files and limit memory requires when diff & patch.

* [z88dk/z88dk](https://github.com/z88dk/z88dk) - The development kit for over a hundred z80 family machines - c compiler, assembler, linker, libraries.

* [LinusDierheimer/fastfetch](https://github.com/LinusDierheimer/fastfetch) - Like neofetch, but much faster because written in C.

* [tarcieri/cool.io](https://github.com/tarcieri/cool.io) - Simple evented I/O for Ruby (but please check out Celluloid::IO instead)

* [winsiderss/systeminformer](https://github.com/winsiderss/systeminformer) - A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ http://www.windows-internals.com

* [groundcover-com/caretta](https://github.com/groundcover-com/caretta) - Instant K8s service dependency map, right to your Grafana.

* [zmartzone/mod_auth_openidc](https://github.com/zmartzone/mod_auth_openidc) - OpenID Certified™ OpenID Connect Relying Party implementation for Apache HTTP Server 2.x

* [boku7/BokuLoader](https://github.com/boku7/BokuLoader) - Cobalt Strike User-Defined Reflective Loader written in Assembly & C for advanced evasion capabilities. By: @0xBoku & @s4ntiago_p

* [WebAssembly/wasi-sdk](https://github.com/WebAssembly/wasi-sdk) - WASI-enabled WebAssembly C/C++ toolchain

* [justjake/quickjs-emscripten](https://github.com/justjake/quickjs-emscripten) - Javascript/Typescript bindings for QuickJS, a modern Javascript interpreter written in C by Fabrice Bellard.

* [colmap/colmap](https://github.com/colmap/colmap) - COLMAP - Structure-from-Motion and Multi-View Stereo

* [Gigoteur/UnicornConsole](https://github.com/Gigoteur/UnicornConsole) - Unicorn Console: create quick fantasy game in Rust/Python/Lua/Javascript !

* [Hjdskes/cage](https://github.com/Hjdskes/cage) - A Wayland kiosk

* [timwhitez/Cobalt-Strike-Aggressor-Scripts](https://github.com/timwhitez/Cobalt-Strike-Aggressor-Scripts) - Cobalt Strike Aggressor 插件包

* [lockedbyte/CVE-Exploits](https://github.com/lockedbyte/CVE-Exploits) - PoC exploits for software vulnerabilities

* [solusipse/ureq](https://github.com/solusipse/ureq) - Micro C library for handling HTTP requests on low resource systems.

* [CipherShed/CipherShed](https://github.com/CipherShed/CipherShed) - Main CipherShed Development

* [edenhill/librdkafka](https://github.com/edenhill/librdkafka) - The Apache Kafka C/C++ library

* [belangeo/pyo](https://github.com/belangeo/pyo) - Python DSP module

* [xmake-io/xmake](https://github.com/xmake-io/xmake) - 🔥 A cross-platform build utility based on Lua

* [fcambus/telize](https://github.com/fcambus/telize) - High performance JSON IP and GeoIP REST API (IP Geolocation)

* [HandmadeMath/Handmade-Math](https://github.com/HandmadeMath/Handmade-Math) - A simple math library for games and computer graphics. Compatible with both C and C++.

* [xroche/coffeecatch](https://github.com/xroche/coffeecatch) - CoffeeCatch, a tiny native POSIX signal catcher (especially useful for JNI code on Android/Dalvik)

* [kovidgoyal/html5-parser](https://github.com/kovidgoyal/html5-parser) - Fast C based HTML 5 parsing for python

* [HarveyHunt/howm](https://github.com/HarveyHunt/howm) - A lightweight, X11 tiling window manager that behaves like vim

* [Yubico/yubico-pam](https://github.com/Yubico/yubico-pam) - Yubico Pluggable Authentication Module (PAM)

* [wengkai/ACLLib](https://github.com/wengkai/ACLLib) - ACLLib is a bunch of C functions covers Win32API and provides simpler API to beginners for programming Windows GUI applications. It compiles with MinGW and MS Visual Studio Express

* [MoarVM/MoarVM](https://github.com/MoarVM/MoarVM) - A VM with adaptive optimization and JIT compilation, built for Rakudo

* [pysam-developers/pysam](https://github.com/pysam-developers/pysam) - Pysam is a Python module for reading and manipulating SAM/BAM/VCF/BCF files. It's a lightweight wrapper of the htslib C-API, the same one that powers samtools, bcftools, and tabix.

* [attractivechaos/kann](https://github.com/attractivechaos/kann) - A lightweight C library for artificial neural networks

* [felselva/mathc](https://github.com/felselva/mathc) - Pure C math library for 2D and 3D programming

* [OpenGLInsights/OpenGLInsightsCode](https://github.com/OpenGLInsights/OpenGLInsightsCode) - Source code for OpenGL Insights

* [cos120/captcha_crack](https://github.com/cos120/captcha_crack) - 选字验证码破解，试验过网易和极验，破解率99

* [i-rinat/apulse](https://github.com/i-rinat/apulse) - PulseAudio emulation for ALSA

* [gcesarmza/curl-android-ios](https://github.com/gcesarmza/curl-android-ios) - Static libcurl to be used in Android and iOS apps. Build scripts included. No Android source required

* [y123456yz/Reading-and-comprehense-redis-cluster](https://github.com/y123456yz/Reading-and-comprehense-redis-cluster) - 分布式NOSQL redis源码阅读中文分析注释，带详尽注释以及相关流程调用注释，提出改造点，redis cluster集群功能、节点扩容、槽位迁移、failover故障切换、一致性选举完整分析，对理解redis源码很有帮助，解决了source insight中文注释乱码问题,更新完毕

* [tcbrindle/raytracer.hpp](https://github.com/tcbrindle/raytracer.hpp) - Simple compile-time raytracer using C++17

* [lucasjones/cpuminer-multi](https://github.com/lucasjones/cpuminer-multi) - Multi-algo CPUMiner & Reference Cryptonote Miner (JSON-RPC 2.0)

* [rwos/gti](https://github.com/rwos/gti) - a git launcher :-)

* [tatsuhiro-t/spdylay](https://github.com/tatsuhiro-t/spdylay) - The experimental SPDY protocol version 2, 3 and 3.1 implementation in C

* [laruence/taint](https://github.com/laruence/taint) - Taint is a PHP extension, used for detecting XSS codes

* [cnlohr/colorchord](https://github.com/cnlohr/colorchord) - Chromatic Sound to Light Conversion System

* [ant-media/LibRtmp-Client-for-Android](https://github.com/ant-media/LibRtmp-Client-for-Android) - It is probably the smallest(~60KB, fat version ~300KB) rtmp client for android. It calls librtmp functions over JNI interface

* [MichaelJWelsh/cdsa](https://github.com/MichaelJWelsh/cdsa) - A library of generic intrusive data structures and algorithms in ANSI C

* [ASDAlexander77/TypeScript2Cxx](https://github.com/ASDAlexander77/TypeScript2Cxx) - TypeScript to C++

* [ANSSI-FR/AD-control-paths](https://github.com/ANSSI-FR/AD-control-paths) - Active Directory Control Paths auditing and graphing tools

* [michaelforney/cproc](https://github.com/michaelforney/cproc) - C11 compiler (mirror)

* [k-takata/Onigmo](https://github.com/k-takata/Onigmo) - Onigmo is a regular expressions library forked from Oniguruma.

* [dinhvh/libetpan](https://github.com/dinhvh/libetpan) - Mail Framework for C Language

* [silentbicycle/theft](https://github.com/silentbicycle/theft) - property-based testing for C: generate input to find obscure bugs, then reduce to minimal failing input

* [McGill-DMaS/Kam1n0-Community](https://github.com/McGill-DMaS/Kam1n0-Community) - The Kam1n0 Assembly Analysis Platform

* [CristianHenzel/ClipIt](https://github.com/CristianHenzel/ClipIt) - ClipIt clipboard manager for GTK+

* [mytechnotalent/Reverse-Engineering](https://github.com/mytechnotalent/Reverse-Engineering) - A FREE comprehensive reverse engineering tutorial covering x86, x64, 32-bit ARM & 64-bit ARM architectures.

* [cucumber/common](https://github.com/cucumber/common) - A monorepo of common components - building blocks for implementing Cucumber in various languages.

* [TASEmulators/BizHawk](https://github.com/TASEmulators/BizHawk) - BizHawk is a multi-system emulator written in C#.  BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.

* [X0rg/CPU-X](https://github.com/X0rg/CPU-X) - CPU-X is a Free software that gathers information on CPU, motherboard and more

* [ideawu/c1000k](https://github.com/ideawu/c1000k) - A tool to test if your OS supports 1 million connections(c1000k/c1m)

* [vozlt/nginx-module-sysguard](https://github.com/vozlt/nginx-module-sysguard) - Nginx sysguard module

* [igrr/esp32-cam-demo](https://github.com/igrr/esp32-cam-demo) - Demo for working with a camera on ESP32

* [sepfy/pear](https://github.com/sepfy/pear) - WebRTC Library for IoT/Embedded Device using C

* [lpsantil/rt0](https://github.com/lpsantil/rt0) - A minimal C runtime for Linux i386 & x86_64

* [dyu/ffi-overhead](https://github.com/dyu/ffi-overhead) - comparing the c ffi (foreign function interface) overhead on various programming languages

* [naev/naev](https://github.com/naev/naev) - Naev is a 2d action/rpg space game that combines elements from the action, rpg and simulation genres.

* [microsoft/SymCrypt](https://github.com/microsoft/SymCrypt) - Cryptographic library

* [LingDong-/wax](https://github.com/LingDong-/wax) - A tiny programming language that transpiles to C, C++, Java, TypeScript, Python, C#, Swift, Lua and WebAssembly 🚀

* [fabiensanglard/chocolate_duke3D](https://github.com/fabiensanglard/chocolate_duke3D) - chocolate Duke Nukem,3D

* [angt/glorytun](https://github.com/angt/glorytun) - Multipath UDP tunnel

* [ChibiOS/ChibiOS](https://github.com/ChibiOS/ChibiOS) - Read only mirror of SVN ChibiOS repository at https://osdn.net/projects/chibios/scm/svn/

* [kosma/minmea](https://github.com/kosma/minmea) - a lightweight GPS NMEA 0183 parser library in pure C

* [spotify/NFHTTP](https://github.com/spotify/NFHTTP) - A cross platform C++ HTTP library that interfaces natively to other platforms.

* [naasking/async.h](https://github.com/naasking/async.h) -  Stackless Async Subroutines for C

* [liudf0716/apfree_wifidog](https://github.com/liudf0716/apfree_wifidog) -  A hight performance and lightweight captive portal solution for HTTP(s)

* [HoShiMin/HookLib](https://github.com/HoShiMin/HookLib) - The functions interception library written on pure C and NativeAPI with UserMode and KernelMode support

* [bitlbee/bitlbee](https://github.com/bitlbee/bitlbee) - An IRC to other chat networks gateway :bee:

* [linyiqun/Redis-Code](https://github.com/linyiqun/Redis-Code) - redis键值数据库源码分析

* [ionescu007/SpecuCheck](https://github.com/ionescu007/SpecuCheck) - SpecuCheck is a Windows utility for checking the state of the software mitigations and hardware against  CVE-2017-5754 (Meltdown), CVE-2017-5715 (Spectre v2), CVE-2018-3260 (Foreshadow), and CVE-2018-3639 (Spectre v4)

* [armink/struct2json](https://github.com/armink/struct2json) - A fast convert library between the JSON and C structure. Implement structure serialization and deserialization for C. | C 结构体与 JSON 快速互转库，快速实现 C 结构体的序列化及反序列化

* [cirosantilli/cpp-cheat](https://github.com/cirosantilli/cpp-cheat) - MOVING TO: https://github.com/cirosantilli/linux-kernel-module-cheat#userland-content SEE README. C, C++, POSIX and Linux system programming minimal examples. Asserts used wherever possible. Hello worlds for cool third party libraries and build systems. Cheatsheets, tutorials and mini-projects. 移至：https://github.com/cirosantilli/linux-kernel-module-cheat#userland-content查看自述文件。 C，C ++，POSIX和Linux系统编程的最少示例。 尽可能使用断言。 酷第三方库和构建系统的世界。 备忘单，教程和小型项目。

* [MarilynDafa/Bulllord-Engine](https://github.com/MarilynDafa/Bulllord-Engine) - lightspeed lightweight elegant  game engine in pure c

* [esnme/ultramysql](https://github.com/esnme/ultramysql) - A fast MySQL driver written in pure C/C++ for Python. Compatible with gevent through monkey patching.

* [triaquae/CrazyEye](https://github.com/triaquae/CrazyEye) - OpenSource IT Automation Software

* [intel/intel-cmt-cat](https://github.com/intel/intel-cmt-cat) - User space software for Intel(R) Resource Director Technology

* [suvllian/process-inject](https://github.com/suvllian/process-inject) - 在Windows环境下的进程注入方法：远程线程注入、创建进程挂起注入、反射注入、APCInject、SetWindowHookEX注入

* [LiamBindle/MQTT-C](https://github.com/LiamBindle/MQTT-C) - A portable MQTT C client for embedded systems and PCs alike.

* [cbsd/cbsd](https://github.com/cbsd/cbsd) - Yet one more wrapper around jail, bhyve and XEN on FreeBSD platform.

* [tatsuhiro-t/wslay](https://github.com/tatsuhiro-t/wslay) - The WebSocket library in C

* [eclipse-embed-cdt/eclipse-plugins](https://github.com/eclipse-embed-cdt/eclipse-plugins) - The Eclipse Embedded CDT plug-ins for Arm & RISC-V C/C++ developers (formerly known as the GNU MCU Eclipse plug-ins). Includes the archive of previous plug-ins versions, as Releases.

* [100/Cranium](https://github.com/100/Cranium) - 🤖   A portable, header-only, artificial neural network library written in C99

* [ccpalettes/the-c-programming-language-second-edition-solutions](https://github.com/ccpalettes/the-c-programming-language-second-edition-solutions) - Solutions for all exercises in the book "The C Programming Language - Second Edition"(referred to as K&R, after its authors' initials) by Brian W. Kernighan and Dennis M. Ritchie.

* [TrueBlocks/trueblocks-core](https://github.com/TrueBlocks/trueblocks-core) - The main repository for the TrueBlocks system

* [wren-lang/wren](https://github.com/wren-lang/wren) - The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.

* [johanmalm/jgmenu](https://github.com/johanmalm/jgmenu) - An X11 menu

* [processhacker/processhacker](https://github.com/processhacker/processhacker) - A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware.

* [linuxmint/cinnamon](https://github.com/linuxmint/cinnamon) - A Linux desktop featuring a traditional layout, built from modern technology and introducing brand new innovative features.

* [mszoek/airyx](https://github.com/mszoek/airyx) - A BSD-based OS project that aims to provide an experience like and some compatibility with macOS

* [ElementsProject/lightning](https://github.com/ElementsProject/lightning) - c-lightning — a Lightning Network implementation in C

* [cksystemsteaching/selfie](https://github.com/cksystemsteaching/selfie) - An educational software system of a tiny self-compiling C compiler, a tiny self-executing RISC-V emulator, and a tiny self-hosting RISC-V hypervisor.

* [vxunderground/VX-API](https://github.com/vxunderground/VX-API) - Collection of various WINAPI tricks / features used or abused by Malware

* [particle-iot/device-os](https://github.com/particle-iot/device-os) - Device OS (Firmware) for Particle Devices