Showing 543 open source projects for "c programming"

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  • 1
    ESP-IDF

    ESP-IDF

    Espressif IoT Development Framework

    ESP-IDF (Espressif IoT Development Framework) is the official, open-source development framework for programming Espressif SoCs (such as ESP32, ESP32‑S2, ESP32‑C3 series). It provides toolchains, APIs, components, sample code, and workflows for building embedded IoT firmware, offering support for Wi‑Fi, Bluetooth, power management, and peripheral integration. As well as the esp-idf-template project mentioned in Getting Started, ESP-IDF comes with some example projects in the examples...
    Downloads: 45 This Week
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  • 2
    Wuffs

    Wuffs

    Wrangling Untrusted File Formats Safely

    Wuffs is a memory-safe, zero-dependency library and domain-specific language for writing high-performance image codecs and related parsers. Instead of trusting ad-hoc C, Wuffs code is compiled to C with strong bounds, integer, and state checks inserted by construction, aiming to eliminate whole classes of security bugs without a heavy runtime. The design prioritizes predictable performance: decoders avoid dynamic allocation by default, return explicit “short read” signals, and run well in...
    Downloads: 0 This Week
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  • 3
    Radare2

    Radare2

    UNIX-like reverse engineering framework and command-line toolset

    ...Navigate ASCII-art control flow graphs. Ability to patch binaries, and modify code or data. Search for patterns, magic headers, and function signatures. Easy to extend and modify. Commandline, C API, script with r2pipe in any language.
    Downloads: 29 This Week
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  • 4
    PortableGL

    PortableGL

    An implementation of OpenGL 3.x-ish in clean C

    PortableGL is a single-header, software-only implementation of a subset of OpenGL (specifically the GL 2.1 pipeline), designed to run entirely on the CPU. This lightweight graphics library allows OpenGL-style rendering without GPU acceleration, making it ideal for educational use, debugging, embedded systems, and retro-style software rendering. Because it mirrors OpenGL syntax and design, it can act as a drop-in CPU renderer for testing or deploying 3D graphics on platforms without GPU support.
    Downloads: 3 This Week
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    Gherkin

    Gherkin

    A parser and compiler for the Gherkin language

    Gherkin is a domain-specific language used in behavior-driven development (BDD) to describe software behaviors in a human-readable format. It allows stakeholders to write test cases in plain language, bridging the gap between technical and non-technical team members.
    Downloads: 1 This Week
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  • 6
    clib

    clib

    C package manager-ish

    Package manager for the C programming language. Expects libcurl to be installed and linkable. Basically, the lazy-man's copy/paste promotes smaller C utilities, also serving as a nice way to discover these sort of libraries. From my experience C libraries are scattered all over the web and discovery is relatively poor. The footprint of these libraries is usually quite large and unfocused.
    Downloads: 0 This Week
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  • 7
    uemacs

    uemacs

    Random version of microemacs with my private modificatons

    ...Its feature set is deliberately modest compared to full Emacs, favoring a quick, predictable editing experience for everyday text manipulation. The project serves as both a functional tool and an example of clean, old-school C systems programming. Because the editor is small, users can understand and modify it more easily than sprawling IDEs, which is appealing for hacking and learning. It’s not meant to compete with modern extensible editors; it exists as a minimal, dependable workhorse that starts fast and stays out of the way.
    Downloads: 1 This Week
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  • 8
    ToaruOS

    ToaruOS

    Hobby operating system, bootloader, kernel, drivers, C library

    ...While many independent, hobby, and research OSes aim to experiment with new designs, ToaruOS is intended as an educational resource, providing a representative microcosm of functionality found in major desktop operating systems. The OS includes a kernel, bootloader, dynamic shared object linker, C standard library, its own composited windowing system, a dynamic bytecode-compiled programming language, advanced code editor, and dozens of other utilities and example applications. There are no external runtime dependencies and all required source code, totaling roughly 100k lines of (primarily) C, is included in this repository, save for Kuroko, which lives separately. ...
    Downloads: 3 This Week
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  • 9
    NSync

    NSync

    nsync is a C library that exports various synchronization primitives

    nsync is a portable C library that provides a collection of advanced synchronization primitives designed to facilitate safe and efficient multithreaded programming. It offers reader-writer locks, condition variables, run-once initialization, waitable counters, and waitable bits for coordination and cancellation between threads. Unlike traditional pthreads-based synchronization, nsync introduces conditional critical sections, allowing developers to wait for arbitrary conditions without explicit signaling or complex loop-based logic. ...
    Downloads: 1 This Week
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  • 10
    XiaoLoong Dev-C++

    XiaoLoong Dev-C++

    An updated and improved fork of BloodShed/Orwell Dev-C++

    XiaoLoong Dev-C++ is An updated and improved fork of Orwell Dev-C++, which is a beginner-friendly integrated development environment (IDE) for C and C++ programming language. Several known bugs were fixed, components are updated, and some new features are added.
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    Downloads: 61 This Week
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  • 11
    shadowsocks-libev

    shadowsocks-libev

    Bug-fix-only libev port of shadowsocks

    Shadowsocks-libev is a lightweight secured SOCKS5 proxy for embedded devices and low-end boxes. Shadowsocks-libev is written in pure C and depends on libev. It's designed to be a lightweight implementation of shadowsocks protocol, in order to keep the resource usage as low as possible. Snap is the recommended way to install the latest binaries. You can build shadowsocks-libev and all its dependencies by script. The latest shadowsocks-libev has provided a redir mode. You can configure your...
    Downloads: 10 This Week
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  • 12
    SWIG

    SWIG

    A code generator for connecting C/C++ with other programming languages

    ...SWIG is most commonly used to create high-level interpreted or compiled programming environments, user interfaces, and as a tool for testing and prototyping C/C++ software. SWIG is typically used to parse C/C++ interfaces and generate the 'glue code' required for the above target languages to call into the C/C++ code. SWIG can also export its parse tree in the form of XML.
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    Downloads: 43,123 This Week
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  • 13
    CLIPS Rule Based Programming Language
    CLIPS is a forward-chaining rule-based programming language written in C that also provides procedural and object-oriented programming facilities.
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    Downloads: 293 This Week
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  • 14
    libgit2

    libgit2

    A cross-platform, portable, linkable Git implementation library

    libgit2 is a portable, pure C implementation of the Git core methods provided as a re-entrant linkable library with a solid API, allowing you to write native speed custom Git applications in any language which supports C bindings. Libgit2 is developed with CMake, and this is be the easiest way to build a binary from the source. The CMake build system provides lots of options to configure the libgit2 build for your particular needs. It’s highly recommended that you build libgit2 as a static...
    Downloads: 2 This Week
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  • 15
    Unified Communication X

    Unified Communication X

    Communication framework for data-centric high-performance applications

    Accelerate Your Network Performance with UCX. Collaboration between industry, laboratories, and academia to create an open-source, production-grade communication framework for data-centric and high-performance applications. Unified Communication X (UCX) is an award winning, optimized production proven communication framework for modern, high-bandwidth and low-latency networks. UCX exposes a set of abstract communication primitives which utilize the best of available hardware resources and...
    Downloads: 0 This Week
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  • 16
    LÖVR

    LÖVR

    Lua Virtual Reality engine

    An open-source framework for rapidly building immersive 3D experiences. You can use LÖVR to easily create VR experiences without much setup or programming experience. The framework is tiny, fast, open-source, and supports lots of different platforms and devices. Runs on Windows, Mac, Linux, Android, WebXR. Supports Vive/Index, Oculus Rift/Quest, Pico, Windows MR, and has a VR simulator. Simple VR scenes can be created in just a few lines of Lua. Writen in C99 and scripted with LuaJIT,...
    Downloads: 2 This Week
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  • 17
    libusbmuxd

    libusbmuxd

    A client library to multiplex connections from and to iOS devices

    A client library for applications to handle usbmux protocol connections with iOS devices. This project is a client library to multiplex connections from and to iOS devices alongside command-line utilities. It is primarily used by applications that use the libimobiledevice library to communicate with services running on iOS devices. The library does not establish a direct connection with a device but requires connecting to a socket provided by the usbmuxd daemon. The libimobiledevice project...
    Downloads: 1 This Week
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  • 18
    Watchy

    Watchy

    An open source E-ink smartwatch

    Watchy, an open-source E-Ink smartwatch. Watchy is an E-Paper watch with open-source hardware and software. It has a barebones design utilizing the PCB as the watch body, allowing it to be worn as-is, or further customized with different 3D printed cases and watch straps. It is a unique timepiece that is also a wearable development platform, allowing users to create their own experience. Ultra-low-power e-paper 1.54″ display with 200 x 200 resolution and wide viewing angle. Wi-Fi & Bluetooth...
    Downloads: 0 This Week
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  • 19
    xxHash

    xxHash

    Extremely fast non-cryptographic hash algorithm

    xxHash is an extremely fast non-cryptographic hash algorithm, working at RAM speed limit. It is proposed in four flavors (XXH32, XXH64, XXH3_64bits and XXH3_128bits). The latest variant, XXH3, offers improved performance across the board, especially on small data. It successfully completes the SMHasher test suite which evaluates collision, dispersion and randomness qualities of hash functions. Code is highly portable, and hashes are identical across all platforms (little / big endian)....
    Downloads: 0 This Week
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  • 20
    Lexbor

    Lexbor

    Lexbor is development of an open source HTML Renderer library

    Lexbor is the development of a web browser engine available as a software library; it ships with a free license and has no extra dependencies. For us, speed is an absolute must-have. In our development process, we focus on fastest parsing techniques for HTML, CSS, and fonts, fastest data processing methods, and fastest ways to serve content to end users. Whether you are building a backend that handles millions of HTML documents or a UI-heavy user app, your software’s response rate always...
    Downloads: 0 This Week
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  • 21
    Unikraft

    Unikraft

    A next-generation cloud native kernel designed to unlock performance

    Unikraft powers the next generation of cloud-native, containerless applications by enabling you to radically customize and build custom OS/kernels; unlocking best-in-class performance, security primitives, and efficiency savings. Unikraft optimizes resource utilization, leading to smaller footprints (meaning higher server saturation) and improved efficiency in resource-constrained environments. Unikraft is an open-source project driven by a vibrant community of over 100 developers, fostering...
    Downloads: 0 This Week
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  • 22
    Agena

    Agena

    Agena is an interpreted procedural programming language.

    Agena is an easy-to-learn procedural programming language designed for science, scripting, and many other applications. Binaries are available for Windows, Linux, Solaris, OS/2, Mac OS X, Raspberry Pi and DOS.
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    Downloads: 79 This Week
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  • 23

    Seed7

    Interpreter and compiler for the Seed7 programming language.

    Interpreter, compiler, libraries, documentation and examples for the Seed7 programming language. Seed7 is a general purpose programming language. It is a higher level language compared to Ada, C/C++ and Java. In Seed7 new statements and operators can be declared easily. Functions with type results and type parameters are more elegant than a template or generics concept. Object orientation is used where it brings advantages and not in places where other solutions are more obvious. ...
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    Downloads: 10 This Week
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  • 24
    newRPL

    newRPL

    The classic RPL programming language reimplemented and reimagined.

    This project reimplements from scratch the RPL language made popular by HP programmable calculators, in portable C/C++. The main goal is to release a complete computing environment for various targets. There's currently 4 active targets: the HP 50g, HP39gs and HP40gs calculators and a PC simulator (see the downloads section!). Other ports are planned for the future.
    Downloads: 25 This Week
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  • 25
    AQ

    AQ

    AQ is an interpreted programming language. It is fast, small, simple a

    AQ is a fast, small, simple and safe interpreted programming language. It may be a great work.
    Downloads: 2 This Week
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