An open API service indexing awesome lists of open source software.

C

C is a programming language designed by Dennis Ritchie at Bell Labs. C is very widely used, straightforward, and can be compiled to a number of platforms and operating systems. C is an imperative language, with a small number of keywords and a large number of mathematical operators. C is also a very low level programming language, which means it can communicate directly with hardware.

https://github.com/p00f/clangd_extensions.nvim

Clangd's off-spec features for neovim's LSP client. Use https://sr.ht/~p00f/clangd_extensions.nvim instead

c clangd cpp lsp neovim nvim nvim-lsp

Last synced: 17 Jul 2025

https://github.com/doches/progressbar

An easy-to-use C library for displaying text progress bars.

c command-line-tools hacktoberfest

Last synced: 05 Apr 2025

https://github.com/ariya/fastlz

Small & portable byte-aligned LZ77 compression

amd64 ansi-c arm64 c c90 c99 compression dos fastlz freedos intel lempel-ziv lz77 mipsel ms-dos portable riscv

Last synced: 04 Apr 2025

https://github.com/danielkrupinski/memject

Simple Dll injector loading from memory. Supports PE header and entry point erasure. Written in C99.

c c99 dll-injection hacking injection manual-map-dll memject reverse-engineering

Last synced: 06 Apr 2025

https://github.com/Nihlus/AdvancedDLSupport

Delegate-based C# P/Invoke alternative - compatible with all platforms and runtimes.

c coreclr csharp dotnet hacktoberfest native netstandard pinvoke

Last synced: 16 Mar 2025

https://github.com/cozis/microtcp

A minimal TCP/IP stack

c ip minimal socket socket-programming tcp

Last synced: 10 Jul 2025

https://github.com/NetworkBlockDevice/nbd

Network Block Device

c nbd network storage

Last synced: 30 Mar 2025

https://github.com/wizbright/waybox

An openbox clone on Wayland (WIP)

c openbox wayland wip

Last synced: 11 May 2025

https://github.com/codam-coding-college/mlx42

Codam's own fixed, functioning and open source alternative of the miniLibX. MLX42 is a simple cross-platform graphics library running on GLFW and OpenGL.

42 42born2code 42pleaseadoptmefinally 42school c cocoa codam cross-platform glfw graphics graphics-library linux macos minilibx mlx mlx42 opengl winapi windows x11

Last synced: 24 Oct 2025

https://github.com/amatcoder/mednaffe

A front-end (GUI) for mednafen emulator

c cross-platform emulator-frontend gtk gui

Last synced: 04 Apr 2025

https://github.com/ohkimur/the-c-programming-language-2nd-edition-solutions

Solutions to the exercises in the book "The C Programming Language" (2nd edition) by Brian W. Kernighan and Dennis M. Ritchie. This book is also referred to as K&R.

c c-language c-programming language programming programming-challenges programming-exercises programming-language solution solutions

Last synced: 04 Apr 2025

https://github.com/youzan/zan

高效稳定、安全易用、线上实时验证的全异步高性能网络库,通过PHP扩展方式使用。

asyncio c muti-process php php-extension reactor

Last synced: 24 Oct 2025

https://github.com/c-chads/tinygl

The penultimate portable graphics library

c c99 cpp embedded fabrice-bellard opengl portable rasterizer tinygl

Last synced: 04 Oct 2025

https://github.com/flintlib/arb

Arb has been merged into FLINT -- use https://github.com/flintlib/flint/ instead

arbitrary-precision c complex-numbers floating-point interval-arithmetic linear-algebra multiprecision number-theory special-functions

Last synced: 29 Dec 2025

https://github.com/sysprog21/lab0-c

C Programming Lab: Assessing Your C Programming Skills

c c-programming csapp linked-list linux programming-skills valgrind

Last synced: 16 May 2025

https://github.com/CasterWx/AntzOS

:earth_asia: Develop an intelligent AI half terminal half graphical operating system Antz. 一个随心所欲制造的操作系统Antz。

c

Last synced: 27 Apr 2025

https://github.com/AndersKaloer/Ring-Buffer

A simple ring buffer (circular buffer) designed for embedded systems.

buffer c circular-buffer circularbuffer ring-buffer ringbuffer

Last synced: 10 Jul 2025

https://github.com/hellerve/e

A dead simple editor

c editor lua posix

Last synced: 20 Mar 2025

https://github.com/meulengracht/mollenos

MollenOS/Vali is a modern operating system that is built with focus on abstraction and a modular design, allowing anyone to port it to any architecture. It currently targets the x86-32 and x86-64 platform.

c c-plus-plus drivers kernel modular operating os system

Last synced: 15 May 2025

https://github.com/Meulengracht/MollenOS

MollenOS/Vali is a modern operating system that is built with focus on abstraction and a modular design, allowing anyone to port it to any architecture. It currently targets the x86-32 and x86-64 platform.

c c-plus-plus drivers kernel modular operating os system

Last synced: 20 Nov 2025

https://github.com/unrealircd/unrealircd

Official UnrealIRCd repository. Downloads are available from our site

c irc irc-server ircd ircv3 sasl unrealircd

Last synced: 03 Apr 2025

https://github.com/dustpg/StepFC

Make FC(NES) Emulator Step-by-Step 一步一步模拟红白机

c emulator famicom nes-emulator

Last synced: 27 Apr 2025

https://github.com/kokke/tiny-bignum-c

Small portable multiple-precision unsigned integer arithmetic in C

arbitrary-precision arbitrary-precision-integers big-int bignum bignumber bignumbers c multi-precision

Last synced: 26 Jun 2025

https://github.com/DanielMartensson/Open-SAE-J1939

SAE J1939 protocol free to use for embedded systems or PC with CAN-bus

arduino avr c canbus embedded j1939 pic sae stm32

Last synced: 08 May 2025

https://github.com/bacnet-stack/bacnet-stack

BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications services.

bacnet bacnet-client bacnet-ip bacnet-library bacnet-server c command-line command-line-tool command-line-tools embedded iot ip ipv4 ipv6 linux mstp windows

Last synced: 16 Apr 2025

https://github.com/victorfisac/Physac

2D physics header-only library for videogames developed in C using raylib library.

2d 2d-physics-engine c dynamics physics physics-engine simulation threading

Last synced: 08 May 2025

https://github.com/rhysd/8cc.vim

C Compiler written in Vim script

c compiler vim vim-plugin

Last synced: 09 Apr 2025

https://github.com/patwie/tensorflow-cmake

TensorFlow examples in C, C++, Go and Python without bazel but with cmake and FindTensorFlow.cmake

c cmake cpp cuda deep-learning golang inference opencv tensorflow tensorflow-cc tensorflow-cmake tensorflow-examples tensorflow-gpu

Last synced: 06 Apr 2025

https://github.com/jabberd2/jabberd2

JabberD XMPP Server

c embedded jabber server xmpp

Last synced: 29 Sep 2025

https://github.com/smackers/smack

SMACK Software Verifier and Verification Toolchain

c c-plus-plus llvm rust smt verification verification-toolchain verifier

Last synced: 15 May 2025

https://github.com/akagi201/lw_oopc

Light Weight Object Oriented C macros

c lightweight lw-oopc object-oriented oop

Last synced: 04 Apr 2025

https://github.com/Yellow-Camper/libevhtp

Create extremely-fast and secure embedded HTTP servers with ease.

c embedded-c event-driven http https libevent library

Last synced: 14 May 2025

https://github.com/sammycage/plutovg

Tiny 2D vector graphics library in C

2d c canvas graphics plutovg svg vector

Last synced: 06 Aug 2025

https://github.com/huawenyu/design-patterns-in-c

Practical design patterns in C

c oop patterns

Last synced: 05 Apr 2025

https://github.com/vmprof/vmprof-python

vmprof - a statistical program profiler

c native profile profiler pypy python python-3 statistics vmprof

Last synced: 08 Oct 2025

https://github.com/davidesantangelo/krep

Fast text search tool with advanced algorithms, SIMD acceleration, multi-threading, and regex support. Designed for rapid, large-scale pattern matching with memory-mapped I/O and hardware optimizations.

c cli hardware-acceleration search-algorithm searching

Last synced: 18 Feb 2026

https://github.com/yellow-footed-honeyguide/facad

A modern, colorful ls alternative for bringing clarity to the filesystem ☀️

c color command-line files ls terminal tools

Last synced: 15 May 2025

https://github.com/404name/winter

C语言 课程设计+大作业+小程序集,纯字符画逻辑实现【笔记本电脑,哔哩哔哩移动端,超级玛丽,QQ,绝地求生等】让C语言课设不仅仅局限于图书馆管理系统!配套视频演示,代码均通过自己思考无任何参考实现,规范性只能说是相当于我大一的标准,欢迎分享,学习和交流

c cgame game

Last synced: 05 Apr 2025

https://github.com/openslide/openslide

C library for reading virtual slide images

c pathology whole-slide-imaging

Last synced: 13 May 2025

https://github.com/zint/zint

A barcode encoding library supporting over 50 symbologies including Code 128, Data Matrix, USPS OneCode, EAN-128, UPC/EAN, ITF, QR Code, Code 16k, PDF417, MicroPDF417, LOGMARS, Maxicode, GS1 DataBar, Aztec, Composite Symbols and more.

barcode-generator c library linux

Last synced: 04 Apr 2025

https://github.com/sheredom/hashmap.h

#️⃣ single header hashmap implementation for C and C++

c cpp hashmap

Last synced: 06 Oct 2025

https://github.com/nrf24/rf24mesh

OSI Layer 7 Mesh Networking for RF24Network & nrf24L01+ & nrf52x devices

arduino arduino-library c c-plus-plus hacktoberfest nrf24l01 rf24

Last synced: 07 Apr 2025

https://github.com/rgerganov/footswitch

Command-line utility for PCsensor and Scythe foot switches

c footswitch linux osx

Last synced: 04 Apr 2025

https://github.com/yellow-camper/libevhtp

Create extremely-fast and secure embedded HTTP servers with ease.

c embedded-c event-driven http https libevent library

Last synced: 29 Sep 2025

https://github.com/ngircd/ngircd

Free, portable and lightweight Internet Relay Chat server

bsd c chat daemon internet-relay-chat irc ircd linux macos ngircd server unix

Last synced: 20 Mar 2025

https://github.com/babelouest/glewlwyd

Experimental Single Sign On server, OAuth2, Openid Connect, multiple factor authentication with, HOTP/TOTP, FIDO2, TLS Certificates, etc. extensible via plugins

authentication-backend c fido2 hoel hotp ldap n-factor-authentication oauth2 oidc-server openid-connect openidconnect otp reactjs tls-certificate totp ulfius webauthn yubikey

Last synced: 14 Jan 2026

https://github.com/pupnp/pupnp

libupnp: Build UPnP-compliant control points, devices, and bridges on several operating systems.

c dlna library sdk ssdp upnp upnp-library xml

Last synced: 08 Feb 2026

https://github.com/salman-abedin/devour

X11 window swallower

c terminal-emulators x11

Last synced: 06 Apr 2025

https://github.com/haakonnessjoen/MAC-Telnet

Open source MAC Telnet client and server for connecting to Mikrotik RouterOS routers and Posix devices using MAC addresses

c layer2 mikrotik routeros telnet

Last synced: 25 Mar 2025

https://github.com/haakonnessjoen/mac-telnet

Open source MAC Telnet client and server for connecting to Mikrotik RouterOS routers and Posix devices using MAC addresses

c layer2 mikrotik routeros telnet

Last synced: 04 Apr 2025

https://github.com/bfabiszewski/libmobi

C library for handling Kindle (MOBI) formats of ebook documents

c ebook kindle library

Last synced: 21 Oct 2025

https://github.com/nfc-tools/libfreefare

A convenience API for NFC cards manipulations on top of libnfc.

c libfreefare libnfc mifare mifare-desfire mifare-ultralight mifare1k nfc

Last synced: 04 Apr 2025

https://github.com/nRF24/RF24Mesh

OSI Layer 7 Mesh Networking for RF24Network & nrf24L01+ & nrf52x devices

arduino arduino-library c c-plus-plus hacktoberfest nrf24l01 rf24

Last synced: 11 May 2025

https://github.com/rmind/ringbuf

Lock-free ring buffer (MPSC)

algorithm c library lock-free ring-buffer

Last synced: 26 Feb 2026

https://github.com/FSX/misaka

A Python binding for Hoedown.

c cffi hoedown markdown python

Last synced: 29 Mar 2025

https://github.com/kekyo/il2c

IL2C - A translator for ECMA-335 CIL/MSIL to C language.

aot arduino c cil csharp dotnet ecma335 fsharp intermediate-language msil systems-programming translator transpiler uefi wdm

Last synced: 12 Apr 2025

https://github.com/Foadsf/Cmathtuts

trying to collect all useful tutorials for famous C math and linear algebra libraries such as CBLAS, CLAPACK, GSL...

algebra blas c cblas clapack fortran lapack lapacke mathematics

Last synced: 06 May 2025

https://github.com/libocca/occa

Portable and vendor neutral framework for parallel programming on heterogeneous platforms.

c cpp cuda dpcpp fortran gpgpu gpu hip hpc jit metal multithreading oneapi opencl openmp sycl

Last synced: 04 Apr 2025

https://github.com/xiph/speex

Speex voice codec mirror - THIS IS A MIRROR, DEVELOPMENT HAPPENS AT https://gitlab.xiph.org/xiph/speex

audio c codec compression

Last synced: 05 Apr 2025

https://github.com/picrin-scheme/picrin

lightweight scheme interpreter

c interpreter scheme scheme-interpreter

Last synced: 26 Mar 2025

https://github.com/ariya/FastLZ

Small & portable byte-aligned LZ77 compression

amd64 ansi-c arm64 c c90 c99 compression dos fastlz freedos intel lempel-ziv lz77 mipsel ms-dos portable riscv

Last synced: 08 May 2025

https://github.com/kekyo/IL2C

IL2C - A translator for ECMA-335 CIL/MSIL to C language.

aot arduino c cil csharp dotnet ecma335 fsharp intermediate-language msil systems-programming translator transpiler uefi wdm

Last synced: 20 Mar 2025

https://github.com/flingengine/FlingEngine

A Vulkan game engine with a focus on data oriented design

c cmake cpp engine game graphics hacktoberfest opensource vulkan

Last synced: 08 May 2025

https://github.com/ParRes/Kernels

This is a set of simple programs that can be used to explore the features of a parallel platform.

c c-plus-plus coarray-fortran fortran2008 hpc julia kokkos mpi openacc opencl openmp parallel parallel-programming pgas python3 shmem sycl threading

Last synced: 01 Apr 2025

https://github.com/PotatoSpudowski/fastLLaMa

fastLLaMa: An experimental high-performance framework for running Decoder-only LLMs with 4-bit quantization in Python using a C/C++ backend.

c cpp lama lamacpp python

Last synced: 12 May 2025

https://github.com/mwarning/KadNode

P2P DNS with content key, crypto key and PKI support. DynDNS alternative.

c decentralized dht dns dyndns p2p pki tls

Last synced: 02 Apr 2025

https://github.com/fornever/cesium

C compiler for the CLI platform

c compiler dotnet hacktoberfest

Last synced: 02 Apr 2026

https://github.com/alcover/buffet

All-inclusive Buffer for C

buffer c refcount slices small-string-optimization string view

Last synced: 26 Feb 2026

https://github.com/mywave82/opencubicplayer

Open Cubic Player (unix fork). Music visualizer for various tracked music formats (amiga modules, S3M, IT), chiptunes and other formats related to demoscene

6581 adplug ay-3-8910 c flac hvl impulsetracker midi-player mod modulefiles music music-player music-visualizer ogg-vorbis opl2 opl3 s3m sid timidity ym2149

Last synced: 01 Mar 2026

https://github.com/paolostivanin/OTPClient

Highly secure and easy to use OTP client written in C/GTK3 that supports both TOTP and HOTP

2fa 2fa-client 2fa-security 2factor c gnome gtk3 hotp otp totp

Last synced: 14 Mar 2025

https://github.com/paolostivanin/otpclient

Highly secure and easy to use OTP client written in C/GTK3 that supports both TOTP and HOTP

2fa 2fa-client 2fa-security 2factor c gnome gtk3 hotp otp totp

Last synced: 16 Apr 2026

https://github.com/dyne/cjit

C Just In Time, interpreter and compiler

c interpreter jit

Last synced: 16 May 2025

https://github.com/adtac/fssb

A filesystem sandbox for Linux using syscall intercepts.

c filesystem linux sandbox

Last synced: 06 Apr 2025

https://github.com/cesanta/mjson

C/C++ JSON parser, emitter, JSON-RPC engine for embedded systems

c embedded json json-rpc mit

Last synced: 09 Oct 2025

https://github.com/dharple/detox

Tames problematic filenames

c filenames-change

Last synced: 16 Jun 2025

https://github.com/nsg650/polaris

A WIP 64-bit UNIX-like kernel

c kernel operating-system osdev

Last synced: 16 May 2025

https://github.com/atheme/atheme

Atheme IRC Services

atheme c development irc irc-networks irc-services

Last synced: 29 Dec 2025

https://github.com/facebookincubator/cg-sql

CG/SQL is a compiler that converts a SQL Stored Procedure like language into C for SQLite. SQLite has no stored procedures of its own. CG/CQL can also generate other useful artifacts for testing and schema maintenance.

c c-lang sql sqlite

Last synced: 05 Jul 2025

https://github.com/danihek/hellwal

Pywal-like color palette generator, but faster and in C

c color-palette colors colorschemes generator hell hellwal idkk rice templates themes wal wallpaper

Last synced: 16 May 2025

https://github.com/gtkhash/gtkhash

A cross-platform desktop utility for computing message digests or checksums

blake2 c caja checksum cinnamon gnome gtk hash linux mate md5 md5sum nautilus nemo sha1 sha256 sha3 thunar windows xfce

Last synced: 29 Apr 2025

https://github.com/jovanlanik/gtklock

GTK-based lockscreen for Wayland

c gtk gtk3 gtklock linux sway swaywm wayland wlroots

Last synced: 16 May 2025

https://github.com/leandros/windowshmodular

A modular Windows.h Header. Licensed under Public Domain & MIT.

c c-plus-plus cpp cxx win32 windows

Last synced: 20 Jun 2025

https://github.com/PhilippRados/wrecc

A x86_64 C99 compiler written in Rust from scratch

c codegen compiler from-scratch rust

Last synced: 01 Aug 2025

https://github.com/raysan5/rres

A simple and easy-to-use file-format to package resources

c file-format packaging videogames

Last synced: 05 Apr 2025

https://github.com/pret/pokeheartgold

Decompilation of Pokemon HeartGold/SoulSilver

c decompilation nintendo-ds pokemon reverse-engineering

Last synced: 15 May 2025