Browse free open source C Libraries for Windows and projects below. Use the toggles on the left to filter open source C Libraries for Windows by OS, license, language, programming language, and project status.

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  • 1
    raylib

    raylib

    A simple and easy-to-use library to enjoy videogames programming

    raylib is highly inspired by Borland BGI graphics lib and by XNA framework. Do you want to see all functions available in raylib? Check raylib cheatsheet. raylib is a programming library to enjoy videogames programming; no fancy interface, no visual helpers, no auto-debugging, just coding in the most pure spartan-programmers way. raylib has received several recognitions in the last years and many people have written about the library. Here there are the main awards received from Google and Epic Games. raylib supports multiple target platforms, it has been tested in the following platforms but, technically, any platform that supports C language and OpenGL graphics is valid for raylib or can be very easily ported to. raylib can be combined with several extra libraries for additional functionality, some of those libraries are already used internally while others are provided for user integration, most of these libraries are single-file header-only with no external dependencies.
    Downloads: 199 This Week
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  • 2
    GLFW

    GLFW

    A multi-platform library for OpenGL, OpenGL ES, Vulkan, etc.

    GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan development on the desktop. It provides a simple API for creating windows, contexts and surfaces, receiving input and events. Gives you a window and OpenGL context with just two function calls. Support for OpenGL, OpenGL ES, Vulkan and related options, flags and extensions. Support for multiple windows, multiple monitors, high-DPI and gamma ramps. Support for keyboard, mouse, gamepad, time and window event input, via polling or callbacks. Comes with a tutorial, guides and reference documentation, examples and test programs. Open Source with an OSI-certified license allowing commercial use. Access to native objects and compile-time options for platform specific features. Community-maintained bindings for many different languages.
    Downloads: 31 This Week
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  • 3
    GLFW

    GLFW

    A project that has moved to GitHub

    GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan development on the desktop. It provides a simple API for creating windows, contexts and surfaces, receiving input and events.
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    Downloads: 139 This Week
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  • 4
    Simple DirectMedia Layer

    Simple DirectMedia Layer

    Simple Directmedia Layer

    Simple DirectMedia Layer is a cross-platform development library designed to provide low-level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award-winning catalog and many Humble Bundle games. SDL officially supports Windows, macOS, Linux, iOS, and Android. Support for other platforms may be found in the source code. SDL is written in C, works natively with C++, and there are bindings available for several other languages, including C# and Python.
    Downloads: 20 This Week
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  • 5
    [OFFICIAL] tinyfiledialogs C C++ v3.21.3

    [OFFICIAL] tinyfiledialogs C C++ v3.21.3

    inputbox password WIN OSX GTK QT Console VCPKG C# Lua R Fortran Pascal

    one C/C++ file & header ==> 8 functions: - beep - tray notify popup - message & question - input & password - save file - open file(s) - select folder - color picker complements OpenGL Vulkan GLFW GLUT GLUI VTK SFML TGUI SDL Ogre Unity3d ION OpenCV CeGui MathGL GLM CPW GLOW Open3D ImGui MyGui GLT NGL STB Nuklear Fenster MicroUi & head-less programs NO INIT NO MAIN LOOP NO LINKING NO INCLUDE win (XP to 11) ASCII MBCS UTF-8 UTF-16 (wchar_t) - native dialogs osx/unix ASCII UTF-8 - applescript kdialog zenity shanty … ° SSH console / X forwarding / waypipe Wayland ° the dialogs can be forced into console mode ° curses dialogs via Dialog.exe/Dialog (disabled by default) C89/C23 & C++98/C++23 compliant VisualStudio MinGW GCC Clang TinyCC IntelCC OWCC BCC SunCC on Windows Mac Linux Bsd Solaris Minix Raspbian Flatpak Haiku bindings: VCPKG C# R Lua Rust Haskell Java AllegroBasic Fortran Pascal D JavaScript Kotlin click tab 'Files' for prototypes
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    Downloads: 93 This Week
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  • 6
    zlib-ng

    zlib-ng

    zlib replacement with optimizations for "next generation" systems

    zlib data compression library for the next-generation systems. Zlib-compatible API with support for dual-linking. Modernized native API based on zlib API for ease of porting. Modern C11 syntax and a clean code layout. Deflate medium and quick algorithms based on Intel’s zlib fork.
    Downloads: 10 This Week
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  • 7
    Graphics primitives (line, circle, rectangle etc.) with AA support, rotozoomer and other drawing related support functions wrapped up in a C based add-on library for the Simple Direct Media (SDL) cross-platform API layer.
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    Downloads: 17 This Week
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  • 8
    SDL

    SDL

    Simple DirectMedia Layer

    SDL (Simple DirectMedia Layer) is a cross-platform multimedia development library designed to provide low-level access to hardware components such as graphics, audio, input devices, and system resources, making it a foundational tool for building games, emulators, and interactive applications. It abstracts platform-specific functionality into a consistent API, allowing developers to write code once and deploy it across multiple operating systems including Windows, macOS, Linux, iOS, and Android. SDL is written in C but is compatible with C++ and has bindings for multiple other programming languages, making it highly flexible for different development environments. The library is not a game engine itself, but rather a hardware abstraction layer that enables developers to build engines or applications on top of it with full control over performance and rendering. It supports modern graphics APIs such as OpenGL, Vulkan, Direct3D, and Metal.
    Downloads: 1 This Week
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  • 9
    Orx: Portable Game Engine

    Orx: Portable Game Engine

    Orx: Portable Game Engine

    Orx is a portable, lightweight, plugin-based, data-driven and extremely easy to use 2D-oriented game engine. As orx is data driven, it allows users to create games with a small number of lines of code and reduces drastically the development time.
    Downloads: 5 This Week
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  • 10

    tcl-sha

    SHA utilities for Tcl

    A Tcl loadable module to do SHA hashes. Compiles as SHA-512, SHA-384, SHA-512/256, SHA-512/224 or compiles as SHA-256, SHA-224.
    Downloads: 2 This Week
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  • 11
    2licht Irrlicht Engine Wrapper

    2licht Irrlicht Engine Wrapper

    Multi-Language Wrapper Collection for the Irrlicht Engine

    2licht's aim is to provide a collection of wrappers for the popular Irrlicht Engine (http://irrlicht.sf.net/). It is still in development; the first wrappers to be released will be the C and Object Pascal interface; followed by a .NET library.
    Downloads: 0 This Week
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  • 12

    Libraries for SDL 2

    Development of useful third-party libraries for use with SDL 2.0

    The goal of this project is to develop useful third-party libraries for use with the newest version of the Simple DirectMedia Layer API. These libraries are not official SDL libraries, and this project is not directly affiliated with official SDL development.
    Downloads: 0 This Week
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  • 13
    Native File Dialog

    Native File Dialog

    Neat C library that portably invokes native file open and save dialogs

    A tiny, neat C library that portably invokes native file open, folder select, and save dialogs. Write dialog code once and have it pop up native dialogs on all supported platforms. Avoid linking large dependencies like wxWidgets and qt. Tested, works alongside libsdl on all platforms, for the game developers out there.
    Downloads: 0 This Week
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  • 14
    Riley's Graphics library FrameWork

    Riley's Graphics library FrameWork

    A cross platform lightweight single-header simple-to-use library

    RGFW (Really Good Framework) is a lightweight, C-based windowing and input library designed to be a minimal alternative to frameworks like GLFW or SDL. It supports OpenGL context creation, input handling, and simple file dialogs while staying highly portable and dependency-free. RGFW is ideal for developers who want tight control over their environment or want to build cross-platform applications with a tiny footprint. It’s particularly suited to educational, experimental, or embedded graphics projects.
    Downloads: 0 This Week
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  • 15
    SSBRenderer

    SSBRenderer

    Renderer for subtitle format SSB.

    SSBRenderer is a plugin for frameservers on Windows & Unix platforms to render 2D graphics by SSB (Substation Beta) data on frames of video streams.
    Downloads: 0 This Week
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  • 16

    TPP

    TinyPreProcessor

    A tiny c/c++ preprocessor Library designed as a base interface for higher-level scripting languages It implements everything from the C11 Standard. TPP is written in c, but offers a c++ api for convenience. TPP Is able, to generate 25MB of preprocessed code in 8 seconds Supported compiler extensions are: - __COUNTER__ - __has_include - __BASE_FILE__ - __INCLUDE_LEVEL__ - Multi-char constants - #pragma once - #include_next - #warning - Oh who am I kidding; this supports pretty much everything. - If a pp-extension isn't supported and isn't on the todo-list, tell me about it New extensions include: - __TPP_COUNTER - __TPP_RANDOM - __TPP_EVAL - __TPP_LOAD_FILE
    Downloads: 0 This Week
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  • 17
    "Unified Modular System" is project primarily designed to create platform independent light-weighted modular applications like games but also GUI or service utilities supported. Application is gathered from unified modules as brick wall from brick.
    Downloads: 0 This Week
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  • 18

    debug_mutex

    c/c++ debug-mutex library

    A cross-platform implementation of a mutex, that automatically checks for everything, you might be doing wrong: - DeadLocks - Invalid mutex leave order - Thread Shutdown, while still holding mutex locks - Destroying a locked mutex - (Un)Locking a destroyed mutex - UnLocking an unlocked mutex - UnLocking an mutex locked by another thread - Locking a non-recursive, locked mutex - Not destroying all mutexes before application termination Every abnormal produces a console output with file and line information about were it is located and why it happened. The main purpose of debug_mutex is the detection of deadlocks and outputting useful information, to fix it, by telling you exactly, where the recursion happened. Debug_mutex can easily be disabled and simply used as a cross-platform mutex Library Debug_mutex can be linked statically or externally
    Downloads: 0 This Week
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  • 19

    deemon

    Deemon Scripting Language

    A rich and powerful scripting language supporting the c preprocessor, classes, exceptions, lambdas, yield functions, label, switch-statement, pointers, foreign functions, and much more. With a fully packed standard library including support for file-io, threads, atomics, pipes, math, file-system, sockets, randomization, hashing, serialization, a wide selection of emulated c/c++ headers and more, deemon provides a suitable environment for any application. Syntax is easy to read and understand and is mostly based on the common languages such as c/c++, java and python, though for those fascinated by it, reaches very deep and allows for pleasingly beautiful code to be written. If you wish to learn deemon, download any package and take a look at 'lib/tut' Note: If you've already used v100, you'll be happy to see how much deemon has grown in the five months that have passed. Keep up to date with deemon at: https://github.com/GrieferAtWork/deemon
    Downloads: 0 This Week
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  • 20
    imamLL

    imamLL

    linked list for C prgramming language

    ImamLL is a elegant linked list library for C programming language. It is designed to be efficient and programmers friendly by minimizing number of variables required for allocating memory from the heap. It is created in a hope that it will help developers to store arbitrary information in the programs easily.
    Downloads: 0 This Week
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  • 21
    liblzg is a minimal implementation of an LZ77 class compression library. The main characteristic of the library is that the decoding routine is very simple, fast and requires no memory.
    Downloads: 0 This Week
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  • 22
    raygui

    raygui

    A simple and easy-to-use immediate-mode gui library

    raygui is a lightweight, easy-to-use immediate-mode graphical user interface (GUI) library designed primarily to work alongside the raylib graphics programming library, though it can be adapted for other engines. It provides an API inspired by immediate-mode GUI paradigms, similar to Unity’s IMGUI, which allows developers to create buttons, sliders, text boxes, panels, and other controls without managing retained widget states. Because the library is distributed as a single header file containing both declarations and implementations, including it in a project is simple and doesn’t require complex build configurations. raygui supports a wide range of controls and customization options for colors, fonts, and layout metrics, and also includes a built-in set of 1-bit icons that can be embedded into controls. It’s intended for tools development, rapid GUIs for editors or debug interfaces, and simple applications that need basic UI without heavy frameworks.
    Downloads: 0 This Week
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