C is a powerful, general-purpose programming language that's particularly favored for system-level and performance-critical applications. Developed in the early 1970s, it is widely used for operating systems, embedded software, and other low-level applications where efficient interaction with hardware is crucial. For application developers, C offers a rich set of features, including direct access to memory management and low-level data manipulation via pointers, which enables optimized performance. Its minimalistic design, which avoids complex features, makes it a great choice for developers looking to build efficient programs with close-to-metal precision. However, this also means that you are responsible for manual memory management and error handling, which, if not done carefully, can lead to security vulnerabilities such as buffer overflows. Despite its age, C remains relevant due to its portability, being succeptible to various platforms with negligible modifications. Understanding C can greatly enhance an application developer’s ability to write sophisticated, high-performance code and gain insight into the functioning of modern software systems.
View the most prominent open source C projects in the list below. Click on a specific project to view its alternative or complementary packages. Make comparisons and find the best package for your app.
- Display and control your Android device☆154,016Updated this week
- Vim-fork focused on extensibility and usability☆103,355Updated this week
- OBS Studio - Free and open source software for live streaming and screen recording☆78,916Updated this week
- A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff.☆74,202Updated this week
- Mirror of https://git.ffmpeg.org/ffmpeg.git☆66,477Updated this week
- Git Source Code Mirror - This is a publish-only repository but pull requests can be turned into patches to the mailing list via GitGitGad…☆64,161Updated this week
- 🚀 Awesome list of open source applications for macOS. https://t.me/s/opensourcemacosapps☆51,210Updated this week
- A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IM…☆43,363Updated this week
- The official Vim repository☆41,186Updated this week
- 📚 C/C++ 技术面试基础知识总结,包括语言、程序库、数据结构、算法、系统、网络、链接装载库等知识及面试经验、招聘、内推等信息。This repository is a summary of the basic knowledge of recruiting job s…☆38,278Sep 17, 2026Updated last month
- 🎥 Command line media player☆37,702Updated this week
- If you live in the terminal, kitty is made for you! Cross-platform, fast, feature-rich, GPU based.☆35,535Updated this week
- A simple and easy-to-use library to enjoy videogames programming☆35,558Updated this week
- ehviewer,用爱发电,快乐前行☆28,676Updated this week
- 🔥🔥超过1000本的计算机经典书籍、个人笔记资料以及本人在各平台发表文章中所涉及的资源等。书籍资源包括C/C++、Java、Python、Go语言、数据结构与算法、操作系统、后端架构、计算机系统知识、数据库、计算机网络、设计模式、前端、汇编以及校招社招各种面经~☆27,811Nov 6, 2025Updated 11 months ago
- C++ Library Manager for Windows, Linux, and MacOS☆27,563Updated this week
- An incremental parsing system for programming tools☆27,366Updated this week
- World's fastest and most advanced password recovery utility☆27,266Updated this week
- A code-searching tool similar to ack, but faster.☆27,125Jun 16, 2024Updated 2 years ago
- FlatBuffers: Memory Efficient Serialization Library☆26,603Updated this week
- UNIX-like reverse engineering framework and command-line toolset☆25,286Updated this week
- LVGL is a free, full-featured embedded UI library for devices from small MCUs to 3D-capable MPUs, enhanced by LVGL Pro, a professional ed…☆25,088Updated this week
- The Ruby Programming Language☆23,794Updated this week
- Collection of various algorithms in mathematics, machine learning, computer science, physics, etc implemented in C for educational purpos…☆22,599Aug 7, 2024Updated 2 years ago
- n³ The unorthodox terminal file manager☆22,107Updated this week
- GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.☆21,116Oct 28, 2026Updated last week
- Open-source keyboard firmware for Atmel AVR and Arm USB families☆20,795Updated this week
- VLC media player - plays everything, runs anywhere. Code here: https://code.videolan.org/videolan/vlc☆20,309Updated this week
- PlayStation 3 emulator and debugger☆20,313Updated this week
- Run compilers interactively from your web browser and interact with the assembly☆19,171Updated this week
- 图解计算机网络、操作系统、计算机组成、数据库,共 1000 张图 + 50 万字,破除晦涩难懂的计算机基础知识,让天下没有难懂的八股文!🚀 在线阅读:https://xiaolincoding.com☆18,577Nov 27, 2024Updated last year
- A free Windows-compatible Operating System☆18,433Updated this week
- SumatraPDF reader☆17,918Updated this week
- Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.☆17,452Updated this week
- The systemd System and Service Manager☆16,997Updated this week
- KCP - A Fast and Reliable ARQ Protocol☆16,950Jun 23, 2026Updated 4 months ago
- Rofi: A window switcher, application launcher and dmenu replacement☆16,519Updated this week
- Sourcetrail - free and open-source interactive source explorer☆16,462Dec 13, 2021Updated 4 years ago
- Self-contained Shadowsocks implementation in C with libuv, asynchronous DNS, and portable static builds for Linux, macOS, Windows, and Fr…☆16,185Oct 28, 2026Updated last week
- Um guia extenso de informações com um vasto conteúdo de várias áreas para ajudar, agregar conhecimento e retirar dúvidas, nesse guia você…☆15,818Sep 2, 2026Updated 2 months ago