A C library for videogame programming with 2D/3D graphics, input, audio, and windowing across desktop, mobile, web, and embedded platforms.
Production-grade C++ edge AI engine for video analytics and on-device VLM across Sophon, Rockchip RKNN, and x86, with visual orchestration, real-time OSD, events, and reproducible benchmarks.
Cross-platform, sophisticated frontend for the libretro API. Licensed GPLv3.
Lightweight real-time memory management application to monitor and clean system memory on your computer.
Open-source e-reader firmware
Standalone open Mesa PanVK Vulkan driver communicating directly with Android proprietary mali_kbase
The game-folder fixes of MacGameVideoFix as their own app: fourteen Windows games fixed on a Mac with nothing patched in CrossOver. Works with CrossOver, CrossOver Preview and Steam Play tools such as NotProton.
Open-source SenseVoiceSmall model for Mandarin, Cantonese, English, Japanese, and Korean ASR, language ID, emotion recognition, and audio event detection.
Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.
Umka: a statically typed embeddable scripting language
Faster FSR 4.1.1 upscaling on Radeon RX 6000 and RX 7000 graphics cards, on Windows and Linux: drop-in DLLs and shader overrides. Exact version keeps AMD's picture byte for byte; optional lossy version is faster still.
Cross-platform asynchronous I/O
ImageMagick is a free, open-source software suite for creating, editing, converting, and displaying images. It supports 200+ formats and offers powerful command-line tools and APIs for automation, scripting, and integration across platforms.
Cross-platform C library for low-level access to graphics, input, audio, and windowing, used to build games and multimedia software.
Cross-platform multi-protocol VPN software. Pull requests are welcome. The stable version is available at https://github.com/SoftEtherVPN/SoftEtherVPN_Stable.
Portable and lightweight cross-platform desktop application development framework
An open source cross-platform USB stack for embedded system
Cross-platform Audio Visualizer
Firmware for Pinetime smartwatch written in C++ and based on FreeRTOS
Xash3D FWGS engine
Multiplatform and Feature-rich Port based on PSX decompilation of Silent Hill 1 made with Claude and Psycross. Still in beta and is in active development.
The “Quite OK Image Format” for fast, lossless image compression
A cross-platform library to access USB devices
PostgreSQL extension for BM25 relevance-ranked full-text search. Postgres OSS licensed.
Official repository for mtr, a network diagnostic tool
Vifm is a file manager with curses interface, which provides Vim-like environment for managing objects within file systems, extended with some useful ideas from mutt.
OAF(OpenAppFilter) is a parental control software based on OpenWrt. It supports popular applications across gaming, video streaming, instant messaging, such as TikTok, YouTube, Facebook. Currently, it supports hundreds of different applications.
A lightweight single-header cross-platform library for general windowing
LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program.
A GUI for the Chameleon Ultra written in Flutter for crossplatform
JNI binding for Zstd
Zig bindings for the sokol headers (https://github.com/floooh/sokol)
Open-source acoustic drone detection. It hears the propellers, not the radio, so it works against fibre-optic FPV aircraft that emit no signal at all.
Run large AI models across your computers and servers. Powered by Colibri. Pure C.
Concurrent SQLite writes across threads and processes without modifying SQLite. No forks, no schema changes, up to 5.7x faster writes.
Every game for your NumWorks calculator in one app: Balatro, Celeste, Hollow Knight, Minecraft, and more.
—
Android port of the Animal Crossing (GameCube) PC port, built with Z.ai, OpenAI Codex and Claude – bring your own disc; HD textures and translations are fetched/generated in the app
SENSES Emulator - now boots arm32 Android versions from 1.5 to 7.1.2
A single-header ANSI C immediate mode cross-platform GUI library
A cross-platform, linkable library implementation of Git that you can use in your application.
minimal cross-platform standalone C headers
OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response.
Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.
The fastest JSON library in C
The Boehm-Demers-Weiser conservative C/C++ Garbage Collector (bdwgc, also known as bdw-gc, boehm-gc, libgc)
AWTK = Toolkit AnyWhere(a cross-platform embedded GUI)
GPAC Ultramedia OSS for Video Streaming & Next-Gen Multimedia Transcoding, Packaging & Delivery
Cross compilation framework to create native packages for the Synology's NAS
Public domain cross platform lock free thread caching 16-byte aligned memory allocator implemented in C
Software synthesizer based on the SoundFont 2 specifications
A cross-platform C and C++ unit testing framework for the 21st century
PortAudio is a cross-platform, open-source C language library for real-time audio input and output.
DeaDBeeF Player
XQUIC Library released by Alibaba is a cross-platform implementation of QUIC and HTTP/3 protocol.
SIMD-accelerated distances, dot products, matrix ops, geospatial & geometric kernels for 16 numeric types — from 6-bit floats to 64-bit complex — across x86, Arm, RISC-V, and WASM, with bindings for Python, Rust, C, C++, Swift, JS, and Go 📐
🐍🎮 pygame - Community Edition is a FOSS Python library for multimedia applications (like games). Built on top of the excellent SDL library.
Share files across the LAN
AgensGraph, a high performance transactional graph database based on PostgreSQL
Miniscule cross-platform eventing, networking & crypto for async applications