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/peko/cimgui-c-example

cimgui `c` example based on imgui glfw3 & opengl implementation

c cimgui glfw imgui opengl

Last synced: 18 Jan 2026

https://github.com/modscleo4/dos

Floppy Disk Operating System

assembly c grub2 multiboot2 os osdev

Last synced: 10 Apr 2025

https://github.com/justinmeiners/tiny-blockchain

Write your own proof-of-work blockchain.

bitcoin blockchain c literate-programming proof-of-work tutorial

Last synced: 25 Mar 2025

https://github.com/angt/slashinit

Minimal PID 1 for initramfs

c init initramfs linux pid1

Last synced: 17 Jan 2026

https://github.com/ttypic/kmm-embedded-c

Extending KMM shared module with C/C++ code. Repo for https://hackernoon.com/how-to-extend-a-kmm-shared-module-with-cc-code

c kmm-library kmm-sample kotlin-multiplatform

Last synced: 24 Apr 2025

https://github.com/sfrechette/weather-micro-station

A modular, high-performance weather display system for the LILYGO T-Display S3, featuring real-time weather data from OpenWeatherMap API with smooth animations and professional UI.

arduino c cpp esp32 esp32-s3 lilygo lilygo-tdisplay-s3 openweathermap-api platformio ticker weather weather-api

Last synced: 07 Apr 2026

https://github.com/nvidia/nvnmos

NVIDIA NMOS (Networked Media Open Specifications) Library

c cpp nmos sdk

Last synced: 05 Sep 2025

https://github.com/llnl/irep

A tool for filling C/C++ or Fortran data structures from Lua input tables

app-infrastructure c cplusplus fortran input-deck interoperability lua

Last synced: 10 Oct 2025

https://github.com/attractivechaos/dlist

Five implementations of double linked lists to demonstrate generic data structures in C

c double-linked-list generic-programming

Last synced: 29 Apr 2025

https://github.com/openbfdev/bfdev

Official repository of bfdev, A C lang algorithm & container library that balances performance, cross-platform compatibility and memory savings while providing a user-friendly API.

algorithms android c embedded freebsd library linux macos structure windows

Last synced: 12 Feb 2026

https://github.com/sunnysetia93/competitive-coding-problems

Solutions to Coding Problems, Hackathons, Coding Challenges from across the internet (Leet-Code, Hacker-Rank, Code Wars, Hacker-Earth) in multiple programming languages.

c codechef-solutions coding-competitions competitive-programming geeksforgeeks-solutions hacktoberfest hacktoberfest2020 java javascript

Last synced: 14 Feb 2026

https://github.com/pinpoint-apm/go-aop-agent

https://github.com/pinpoint-apm/pinpoint-c-agent/issues

apm assembly c go go-aop-agent injection pinpoint pinpoint-c-agent

Last synced: 30 Oct 2025

https://github.com/jokade/swog

Scala wrapper generator for interop with C, C++, Objective-C, and script languages.

c cpp interop lua objective-c scala scala-native

Last synced: 12 Jan 2026

https://github.com/fredericbonnet/picotest

PicoTest is a single-file unit testing framework for C programs that follows the xUnit principles.

c cmake test-automation test-framework testing testing-framework testing-tools tests

Last synced: 13 Jul 2025

https://github.com/ststeiger/functioninterception

Overwrite C/C++ functions in memory for x86-32/64 on Linux, Mac & Windows

c cpp detour hooking linux macos windows

Last synced: 13 Apr 2025

https://github.com/not-nik/rlobj

rlobj is a drop-in replacement for raylib's obj loader

c obj obj-loader raylib wavefront-obj

Last synced: 12 Apr 2025

https://github.com/iHaiDeeZ/PS4Offsets-With-Payloads

PS4 Offsets Documentation

c offsets payload ps4

Last synced: 13 May 2025

https://github.com/rylern/acr122u-tutorial

Tutorial for writing a C/C++ app with the ACR122U on Linux

acr122u c cpp linux mifare mifare-classic mifare-ultralight nfc nfc-reader pcsc pcsc-tools pcsclite

Last synced: 15 Jun 2025

https://github.com/sfrechette/astro-micro-station

A standalone astronomy display for the LILYGO T-Display S3 Pro (ESP32-S3). Tracks the sun, moon, and light conditions — sunrise, sunset, golden hour, blue hour, twilight phases, moon phase and illumination — across four touch-navigated screens. Data fetched from ipgeolocation.io and cached locally for offline use.

astronomy c cpp esp32 home-assistant lilygo lilygo-t-display-s3-pro moon moonphase platformio sunrise

Last synced: 01 Jul 2026

https://github.com/uxcn/farmhash-c

farmhash (C99)

c farmhash hash

Last synced: 16 Jun 2025

https://github.com/gbowne1/programmernotes

This is a collection of Markdown notes written in Obsidian for programming and it includes notes on C, C++, using and configuring VSCode and many other things programming related. Anyone is welcome to contribute to this Markdown repository and make corrections.

c coding config cpp node-js nodejs notebook notebook-publish notes obsidian-md programming programming-language software

Last synced: 06 Mar 2026

https://github.com/libretro/libretro-mpv

mpv media player libretro core

c libretro mpv retroarch

Last synced: 17 Jun 2025

https://github.com/ArkEcosystem/ledger

A Ledger Hardware Wallet Application in C for the ARK Blockchain.

ark blockchain c hardware ledger nanos nanox wallet

Last synced: 03 May 2025

https://github.com/mew-cx/chaitin_lisp

Runnable code from Chaitin's "The Limits of Mathematics (in C)"

c chaitin lisp

Last synced: 27 Mar 2025

https://github.com/rafael-santiago/mr-hyde

A collection of steganography tools.

c steganography toy-apps

Last synced: 05 Apr 2025

https://github.com/leogaudin/minitalk

42 • A guide for minitalk, a client-server communication system implemented in C using UNIX signals.

42 c minitalk signal-processing unix

Last synced: 02 Sep 2025

https://github.com/baziotis/dicc

A compiler for a subset of C written in C.

c code-generator compiler lexer parser x86

Last synced: 18 Jan 2026

https://github.com/Nonoum/ECL

Embedded Compression Library for low-memory systems

c compression embedded

Last synced: 04 Oct 2025

https://github.com/Daniel-Cortez/pawn-3.2-plus

Pawn scripting language with runtime fixes and improvements

c cmake compiler interpreter language pawn

Last synced: 11 May 2025

https://github.com/kube/vscode-clang-complete

Visual Studio Code C/C++ completion using Clang

c c-plus-plus clang completion vscode vscode-extension

Last synced: 11 Apr 2025

https://github.com/sieep-coding/snow-simulation

Interactive GUI Snowfall Simulation Created in C & Raylib

c makefile raylib raylib-c

Last synced: 26 Jun 2025

https://github.com/howerj/lfsr

A VM that uses LFSR instead of a normal program counter that runs Forth

7400 c forth fpga ic lfsr vm

Last synced: 22 May 2026

https://github.com/spl/ivy

A compiler and runtime library for an extended dialect of C that checks type, memory, and concurrency safety

c compiler

Last synced: 12 Apr 2025

https://github.com/robrohan/wasm-canvas

Demo of how to use clang to compile to wasm and write to an HTML canvas (no emscripten)

c javascript wasm webassembly

Last synced: 16 Sep 2025

https://github.com/haxpor/sdl2-cimgui-demo

Demo project SDL2 + cimgui + opengl3 using either gl3w or glew

c c-programming cimgui gl3w glew imgui opengl3 sdl2

Last synced: 14 May 2025

https://github.com/rajlaxmimeshram/cafe-billing-system

In this Project a Person(User) can Ordered item from the menu ,from that this system automatically creates a bill.

c cafe-management

Last synced: 14 Jul 2025

https://github.com/esss/cquadpack

A C port of the QUADPACK software (originally in Fortran) for solving integrals

c fortran

Last synced: 28 Apr 2025

https://github.com/electronic-waste/chcore

A Microkernel OS Lab & Note & Homework for SJTU SE3357

c homework microkernel notes operating-system sjtu sjtu-se

Last synced: 16 Mar 2026

https://github.com/prestonsn/atmegaxx-i2c-library

I2C Library for the ATmegaXX microcontrollers.

atmega avr avr-microcontroller c i2c library

Last synced: 09 Apr 2025

https://github.com/samber/pg_cron

⏰ PostgreSQL extension for running periodic jobs

bgworker c cron cronjob crontab extension job periodic poc postgresql scheduler

Last synced: 22 Apr 2025

https://github.com/jkelley129/ignis-os

An 64-bit operating system I'm developing for the x86 architecture

assembly c drivers low-level memory-management operating-system os system-internals

Last synced: 10 Mar 2026

https://github.com/sysulq/status-nginx-module

A http status module for pure nginx, which is in production already.

c nginx status status-nginx

Last synced: 27 Apr 2025

https://github.com/MaximePremont/Zappy_Epitech

Epitech project : multiplayer game played by artificial intelligences and viewed by a graphical AR interface.

artificial-intelligence augmented-reality c cpp csharp epitech game python zappy

Last synced: 27 Oct 2025

https://github.com/seanghay/betterkhmer

Regex-free, fast Khmer Encoding normalizer ported to 18 languages

c cpp csharp dart flutter go java khmer khmer-normalize khmer-normalizer kotlin perl php python ruby rust zig

Last synced: 02 Jun 2026

https://github.com/aeyakovenko/toaster

Incremental failure injection in C

c coverage failure failure-injection testing

Last synced: 11 Oct 2025

https://github.com/aligrudi/neatrefer

A refer preprocessor for neatroff

c neatroff preprocessor refer

Last synced: 28 Dec 2025

https://github.com/p-gen/ctxopt

Options parser for simple or complex command lines. Take a look at the smenu project for an example of use.

api c command-line command-line-parser getopt

Last synced: 28 Apr 2025

https://github.com/motet-a/toy

Tiny JavaScriptish interpreter

c compiler interpreter javascript

Last synced: 21 Jan 2026

https://github.com/deboogerxyz/ahc

alienhook classic - Free as in freedom CS 1.6 cheat for GNU/Linux.

ansic c c89 counter-strike cs16 gnu-linux

Last synced: 24 Jan 2026

https://github.com/miguelgargallo/flipperzero

FlipperZero | Ultimate compile guide, guía definitiva compilar apps en FliperZerro

c flipperzero guia guide hacker unleashed

Last synced: 19 Apr 2025

https://github.com/lukas-h/toy-http

dead simple HTTP server, providing static file hosting (GET, HEAD) :sparkles: single C source file :sparkles:

c http http-server posix

Last synced: 08 Apr 2025

https://github.com/anubislms/xv6

NYU's fork of MIT's xv6-public

c

Last synced: 24 Aug 2025

https://github.com/dvershinin/ngx_dynamic_etag

NGINX module for adding ETag to dynamic content

c etag etags module nginx nginx-module

Last synced: 06 May 2025

https://github.com/ceremcem/modbus_lib

Lightweight and easy to merge Modbus RTU Slave library for microcontrollers

c modbus-rtu modbus-slave portable-library stm32

Last synced: 27 Mar 2025

https://github.com/trumae/tabuada

Genetic programming synthesize assembler programs

c genetic-algorithm genetic-programming tournament-algorithm

Last synced: 25 Jan 2026

https://github.com/libdriver/fm24clxx

FM24CLXX(FM24CL04B, FM24CL16B, FM24CL64B) full function driver library for general MCU and Linux.

c ferroelectric fm24cl04 fm24cl16 fm24cl64 full-function-driver iic linux mcu

Last synced: 18 Mar 2025

https://github.com/speedycraftah/avr-pico-programmer

A programmer for the AVR architecture microcontroller, specifically the ATTiny84A by Microchip, for the Raspberry Pi Pico.

attiny attiny84a avr avr-programmer avr-programming c raspberry-pi-pico spi

Last synced: 24 Jul 2025

https://github.com/TUVIMEN/reliq

HTML parsing and searching tool

c html parsing searching

Last synced: 10 May 2025

https://github.com/mjovanc/hugin-cli

A CLI based private chat application. Powered by the Kryptokrona Blockchain.

blockchain c clang crypto cryptocurrency cryptography gcc hugin kryptokrona make makefile ncurses njord xkr

Last synced: 07 Aug 2025

https://github.com/cdpxe/cceap

The Covert Channel Educational Analysis Protocol (CCEAP) is a network protocol designed for teaching covert channels to professionals and students in higher education. It is also an easy-to-use covert channel traffic generator. The basis for CCEAP are so-called `hiding patterns'.

c covert-channel education hiding-patterns higher-education information-hiding infosec network network-protocol patterns protocol research-paper research-project research-tool scientific-publications steganography students traffic-analysis tunneling undergraduate

Last synced: 23 Mar 2025

https://github.com/oran-testing/ran-tester-ue

Open source RAN UE centric security testing software.

5g-nr c cplusplus cybersecurity python3 srsran wireless

Last synced: 25 Jan 2026

https://github.com/formalsec/wasp

WASP was superseded by: https://github.com/OCamlPro/owi

c program-analysis symbolic-execution testing webassembly

Last synced: 08 Nov 2025

https://github.com/element39/yttria

blazingly fast, universal and easy-to-use programming language for anything you can imagine

c compiler cpp go language llvm programming-language python rust toolchain yttria zig

Last synced: 30 Jul 2025

https://github.com/hoangsonww/banking-system-simulator

🏦 This repository features a Banking System Simulator developed in C. It simulates basic banking operations such as account creation, deposits, withdrawals, and account inquiries, offering a practical example of system design and management for developers exploring financial applications programming.

algorithms bank bank-account banking banking-applications banking-system banking-system-demo c simulation simulator

Last synced: 22 Sep 2025

https://github.com/eyelash/libgral

low-level cross-platform GUI, audio, and MIDI abstraction

audio c cross-platform gui library midi

Last synced: 05 May 2025

https://github.com/thrushlang/thrushc

The Thrush Programming Language. A programming language dedicated to creating maintainable and modular software.

aot-compiler c clang code-generation compiler hechoencostarica jit-compilation language llvm opensource programming-language rust thrush thrushlang

Last synced: 12 Apr 2025

https://github.com/johnsonjh/tvx

tvx: TVX is a portable full-screen editor for CP/M, MS-DOS, GEMDOS, RT-11, RSX-11, VAX/VMS, and UNIX, written in C by Bruce E. Wampler

atari c cpm dos editor gemdos ms-dos rsx-11 rt-11 rt11 screen-editor text-editor tvx vax vms

Last synced: 18 Mar 2025

https://github.com/exely/wd-data-structure

王道《数据结构》2019版算法题

algorithms-and-data-structures c cpp

Last synced: 30 Jul 2025

https://github.com/alexruzin/cpp_api

A C++ API which is useful for Win32. Includes a communication subsystem.

c cpp http-client injector socks5-proxy

Last synced: 10 Aug 2025

https://github.com/starryalley/ambitsync

Android app to read Suunto Ambit watches and converts to GPX

android-app c java jni-android sports-app suunto usb-devices

Last synced: 26 Jul 2025

https://github.com/amnuts/amnuts

A telnet-based talker

amnuts c chat hacktoberfest nuts talker tcp telnet-server

Last synced: 17 Aug 2025

https://github.com/cea-hpc/pdwfs

A simple Redis-backed distributed virtual filesystem for co-execution of HPC and data analytics workloads

c cea go golang hpc in-situ in-transit redis workflow

Last synced: 14 Apr 2025

https://github.com/mdekauwe/gday

GDAY simulates carbon, nitrogen & water dynamics

c leaf nitrogen photosynthesis plant soil water

Last synced: 17 Aug 2025

https://github.com/jasonliang-dev/tiny-batch-renderer

A tiny batch renderer with OpenGL

c glfw opengl stb

Last synced: 12 Apr 2025

https://github.com/sup3r-us3r/scripts

Scripts for pentesting/hacking

bruteforce c hacking-tool pentesting perl python

Last synced: 29 Jan 2026

https://github.com/samber/arp-spoofing

💥 Simple implementation of arp poisoning attack ;)

address arp attack broadcast c ethernet hijack ip mac poisoning proxy spoofing

Last synced: 22 Apr 2025

https://github.com/joalon/vimway

A wayland compositor with vim-like key bindings

c wayland-compositor

Last synced: 04 Apr 2026

https://github.com/aligrudi/neatpost

Neatroff's postscript postprocessor

c neatroff post-processor postscript roff

Last synced: 28 Dec 2025

https://github.com/blueokiris/ch552g-dev-board

A simple breakout board with minimal hardware design for the CH552g

board breadboard c ch552g dev kicad mcu

Last synced: 15 Oct 2025

https://github.com/bfontaine/gzsize

Print the uncompressed size of a GZip file.

c cli gzip tool

Last synced: 15 Apr 2025

https://github.com/mrousavy/gimp-rpc

A GIMP plugin to display Discord Rich Presence made with C

addon c discord extension gimp plugin presence rich rpc

Last synced: 10 Aug 2025

https://github.com/michaelfromyeg/makefiles

⚙️📕 A guide to Makefiles!

c makefiles

Last synced: 27 Aug 2025

https://github.com/darthmoomancer/polydev

THE project manager for neovim

c cpp html java lua neovim-plugin python rust

Last synced: 02 Sep 2025

https://github.com/immediate-mode-ui/layout.c

Mirror of https://gist.github.com/vurtun/75ee8b43773152930d89b7d1fdbe6450

c c99 gui multiplatform single-header single-header-lib ui

Last synced: 12 Apr 2025

https://github.com/ifplusor/actrie

Aho-Corasick automation for large-scale multi-pattern matching. Available for C/C++, Python, and Java on Linux, macOS, and Windows.

ac-automation aho-corasick-automation c java matcher python string-matcher string-matching string-search trie

Last synced: 21 Aug 2025