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/dns-oarc/omg-dns

Helper library for parsing valid/invalid/broken/malformed DNS packets

c dns dns-record dns-rfcs library parsing

Last synced: 04 Jul 2025

https://github.com/atypicalim/uyghurscript

a toy programming language written in c, u can write & run your script by uyghur, uzbek, turkish, kazakh language grammars ...

c interpreter kazakh language ozbek programming script turkish uighur uyghur uzbek

Last synced: 12 Aug 2025

https://github.com/adam-mcdaniel/vpn

A VPN implemented over TLS/SSL written in C

c cryptography cybersecurity openssl vpn

Last synced: 11 Apr 2025

https://github.com/alessandro-salerno/asciigl

A Small C ASCII Graphics Library

ascii c graphics graphics-library

Last synced: 30 Apr 2025

https://github.com/saagarjha/tinycc

Fork of the Tiny C Compiler patched to compile code on iOS

c compiler ios tinycc

Last synced: 08 Mar 2026

https://github.com/gamemann/stat

A small project to gather counter statistics from the file system or output from commands. Useful for retrieving packets per second and bytes per second on a network interface.

bps bytes c conversions linux network packets per pps rx second statistics stats

Last synced: 18 Mar 2025

https://github.com/rpsubc8/ESP32TinyFake86

Port Fake86 to TTGO VGA32

8086 bitluni c esp32 fake86 ttgo ttgovga32

Last synced: 29 Apr 2025

https://github.com/omaraflak/async-socket

Asynchronous socket class implemented in C++ for Linux systems.

asynchronous c callback-thread client server socket

Last synced: 12 Apr 2025

https://github.com/dark-voyage/neko

🔪 | Just a minimal C proxy server frame with fork for personal use (experiment)

c clang gcc proxy proxy-server server

Last synced: 21 Sep 2025

https://github.com/meirbon/rtbvh

BVH library for Rust

acceleration bvh c cpp ffi ray rust structure tracing

Last synced: 08 Apr 2026

https://github.com/renehorstmann/mathc

A simple and clean, glsl like, math (linear algebra) header only library for C.

c glsl header header-only linear-algebra math matrix vector

Last synced: 30 Jul 2025

https://github.com/z4yx/airmonitor

Air quality monitor based on STM32 & MT7681

c iot mcu sensor wifi

Last synced: 19 Jul 2025

https://github.com/alexgustafsson/perf

A C library for using the perf API on Linux

c linux perf profiling

Last synced: 06 May 2025

https://github.com/cffi-rs/cffi

Safe* C foreign function interface for Rust, using proc macros and marshaling types.

c cthulhu extern ffi marshal rust

Last synced: 13 Jul 2025

https://github.com/mukeshmithrakumar/hackerranksolutions

My HackerRank Solutions for Python, Java, C, C++, Shell, SQL, JavaScript and Interview Preparation Kit

bash c cpp data-science hackerrank hackerrank-solutions interview-preparation interview-questions java javascript linux-shell machine-learning python python3 shell software sql

Last synced: 09 Jul 2025

https://github.com/gjjvdburg/gensvm

A Generalized Multiclass Support Vector Machine available in Python, R, and C

c classification machine-learning multiclass-classification support-vector-machines

Last synced: 04 Oct 2025

https://github.com/franeklubi/scaffolding

scaffolding is a very pointless esolang. Don't try it.

best-language c cli cowboy-time dumb esolang interpreter pointless

Last synced: 12 Apr 2025

https://github.com/jannotti/cpp-algorand-sdk

Unofficial Algorand C++ SDK.

algorand blockchain c cpp cryptocurrency

Last synced: 02 May 2026

https://github.com/thenriquedb/fundamentos-da-programacao-de-computadores-3-edicao

Exercicios do livro Fundamentos da programação de computadores: algoritmos, pascal, C/C++ 3ª Edição

algorithms c iniciante

Last synced: 10 Mar 2026

https://github.com/serge-404/HI-TECH-C-V3.09

HI-TECH C V3.09 CP/M freeware C-compiler - the best Z80 native CP/M ANSII C compiler.

8-bit c cpm freeware-ccompiler z80

Last synced: 12 Jun 2025

https://github.com/pucklaj/dynareadout

High-Performance C/C++ library for parsing binary output files and key files of LS Dyna (d3plot, binout, input deck)

binout c cae cpp d3plot dyna keyfile ls-dyna

Last synced: 26 Apr 2025

https://github.com/jkotra/algoticks

Algoticks is an algorithmic trading simulator written in C.

algorithms algotrading c simulation simulator trading

Last synced: 12 Jul 2025

https://github.com/mostafa-wael/solvendo

An Intelligent Maze Solving Car

arduino avr c linefollower maze-solver

Last synced: 12 Jul 2025

https://github.com/alviroiskandar/gwdown

A CLI tool to download from HTTP/S for GNU/Weeb. Like wget, but can parallel the download.

c downloader gnu unix

Last synced: 08 Oct 2025

https://github.com/corruptedbycpu/foton

Foton (eng. Photon) - is a similar project as Cyjon/Fern-Night, but compatibility will no longer be fully supported.

c kernel osdev x86-64

Last synced: 26 Feb 2026

https://github.com/mbround18/setup-osxcross

Github Action for setting up osxcross in a github action for cross compiling from Linux to Mac

c cross-platform github github-actions linux mac rust

Last synced: 11 Apr 2025

https://github.com/thematjaz/vcan

VCAN is a tiny virtual CAN and CAN-FD bus library in C

bus c c11 can-bus can-fd library virtual virtual-bus virtual-can-bus

Last synced: 11 Mar 2026

https://github.com/devinsmith/w32x

A Win32 API wrapper for Xlib/X11

c win32 xlib

Last synced: 27 Jan 2026

https://github.com/cuixing158/pointpolygontest

determine points are inside, on or outside a polygon/contour or calculate signed distance between points and the nearest contour edge.

algorithm c computer-geometry

Last synced: 25 Oct 2025

https://github.com/libdriver/multi_button

MULTI_BUTTON and MATRIX_BUTTON full-featured driver library for general-purpose MCU and Linux.

c full-featured-driver gpio linux matrix-button mcu multi-button

Last synced: 07 Oct 2025

https://github.com/krondorl/polyglot-programming

Examples in multiple languages

c go haskell java rust typescript

Last synced: 03 Mar 2026

https://github.com/petabyt/font

5x7 General Purpose Font

c embedded font single-header-lib

Last synced: 27 Sep 2025

https://github.com/manulthanura/data-structure-using-c

The data structure means the way of arrangement of data. There are several data structures in the world. However, this repository shows some of the data structures build using the C language.

algorithms algorithms-and-data-structures c data-structures

Last synced: 07 Sep 2025

https://github.com/ip2location/ip2proxy-c

To detect proxy servers with country, region, city, ISP and proxy type information using IP2Proxy binary database.

anonymous-proxy c ip2location ip2proxy ip2proxy-database proxy proxy-database tor vpn

Last synced: 06 Mar 2026

https://github.com/joao-conde/libdsa

C data structures and algorithms library

algorithms c data-structures

Last synced: 07 Mar 2026

https://github.com/farlepet/lambda-kern

Multi-architecture hobby operating system created in C

armv7 assembly c kernel osdev raspberry-pi x86

Last synced: 03 May 2025

https://github.com/ceticamarco/vulcanos

🌋 Monolithic x86 kernel written in C and Assembly

assembly c kernel operating-system osdev

Last synced: 15 Jul 2025

https://github.com/arsenic-atg/jate

A text editor created in C which supports all features expected from a minimal text editor with no dependencies

c editor escape-sequences hacktoberfest terminal text-editor vt100

Last synced: 05 May 2025

https://github.com/lioncash/cppcheck-configs

Configuration files that allow cppcheck to provide better static analysis results

c cpp cppcheck static-analysis

Last synced: 11 Apr 2025

https://github.com/yokawasa/mod_log_slow

Apache module for logging of slow requests handling

apache apache-module c logging

Last synced: 26 Mar 2025

https://github.com/papierkorb/tarfs

tar file system as loadable kernel module

c linux loadable-kernel-modules tar

Last synced: 11 May 2025

https://github.com/briancain/garbage-collector

A basic garbage collection application written in C to manage memory

c garbage-collection garbage-collector memory-management work-in-progress

Last synced: 06 May 2025

https://github.com/vezel-dev/zig-toolsets

The Zig compiler and standard library packaged for use in MSBuild.

build c cpp dotnet msbuild zig

Last synced: 24 Dec 2025

https://github.com/jchavanton/disruptor

generating problems on RTP streams : latency, delay, jitter

c disruptor jitter latency loss netfilter networking packet simulator

Last synced: 13 Apr 2025

https://github.com/drobilla/zix

A lightweight C library of portability wrappers and data structures

b-tree c data-structures filesystem hash hash-table ringbuffer threads

Last synced: 12 Jan 2026

https://github.com/scastd/raygui-cpp

C++ bindings for Raygui library.

c cpp raylib

Last synced: 17 Jan 2026

https://github.com/DanielMartensson/OpenSourceLogger

Data acquisition software with STM32-PLC. Collect measurement, analyze CAN-messages and send SAE-J1939 messages to other ECUs.

c cpp data-aquisition imgui opengl stm32

Last synced: 08 May 2025

https://github.com/rob-blackbourn/example-wasm-array-passing

An example of array passing in wasm and C

c clang javascript wasm webassembly

Last synced: 12 Apr 2025

https://github.com/rageworx/libsrcnn

Super-Resolution imaging with Convolutional Neural Network library for G++, Non-OpenCV model.

c cpp gcc gpp imaging mingw-w64 no-opencv resolution super super-resolution

Last synced: 28 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: 02 Jul 2025

https://github.com/aligrudi/minmad

A small libmad/oss mp3 player

c libmad mp3 text-based

Last synced: 28 Dec 2025

https://github.com/hamza512b/ccube

Rotating 3d cube in terminal

3d c

Last synced: 24 Mar 2025

https://github.com/alt-romes/calculator-c-parser

A simple implementation of a parser and its use to calculate simple mathematical expressions

c grammar-parser ll1-grammar parser simple

Last synced: 23 Mar 2025

https://github.com/hantdev/shortrangeradar

Short Range Ultrasonic Radar - A simple radar using the ultrasonic sensor, this radar works by measuring a range from 3cm to 40 cm as non-contact distance, with angle range between 15˚ and 165˚.

arduino c esp32 iot radar sr04

Last synced: 15 May 2025

https://github.com/wirepas/c-mesh-api

Wirepas's Dual MCU API to interface locally with a node device

c dualmcuapi wm-rm-100

Last synced: 16 Jan 2026

https://github.com/devfabiosilva/nakamoto

Nakamoto is a 2 layer encryption tool to protect your data and your cyptocurrency

argon2id bitcoin c cipher cryptocurrency cryptography openssl pbkdf2 security-tools ssl

Last synced: 16 May 2026

https://github.com/lycuid/clubar

A minialistic statusbar, inspired by xmobar and dwm's statusbar.

c cluless statusbar x11 xorg

Last synced: 23 Aug 2025

https://github.com/mykeels/readlines

An Arduino Library for reading a file, line by line

arduino c callbacks cpp files readline sd

Last synced: 26 Aug 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/Nonoum/ECL

Embedded Compression Library for low-memory systems

c compression embedded

Last synced: 04 Oct 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/uxcn/farmhash-c

farmhash (C99)

c farmhash hash

Last synced: 16 Jun 2025

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/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/wangziqi2013/cfront

A C language parser built from the scratch, without using compiler generator.

c compiler-frontend lr-parser operator-precedence-parser

Last synced: 12 Apr 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/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/squell/fastavr

Atmel AVR simulator written in x86 assembly

assembly avr c simulation

Last synced: 24 Feb 2026

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/sighook/wxp78key

Tiny keylogger for Win XP/Vista/7/8 with ftp upload.

c educational educational-project ftp-upload keylogger keylogging mingw windows

Last synced: 11 Oct 2025

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/modscleo4/dos

Floppy Disk Operating System

assembly c grub2 multiboot2 os osdev

Last synced: 10 Apr 2025

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/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/f-squirrel/dockerized_cpp

Dockerized C/C++ Build Environment

c cpp docker makefile

Last synced: 18 Apr 2026

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/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/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/mgeitz/tbdchat

Simple NCurses Chat Client/Server Using BSD Sockets

c chat docker linux ncurses

Last synced: 17 Mar 2026

https://github.com/analytech-solutions/cbindinggen.jl

Automatically generate Julia-C bindings!

binding-generator c c-api c-bindings c-library julia

Last synced: 21 Oct 2025

https://github.com/angt/slashinit

Minimal PID 1 for initramfs

c init initramfs linux pid1

Last synced: 17 Jan 2026