Open-source keyboard firmware for Atmel AVR and Arm USB families

The lightweight, user-friendly, distributed relational database built on SQLite.

⚡ KCP - A Fast and Reliable ARQ Protocol

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

Box2D is a 2D physics engine for games

A Curated List of Multiplayer Game Network Programming Resources

clumsy makes your network condition on Windows significantly worse, but in a controlled and interactive manner.

Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.

Single C file, Realtime CPU/GPU Profiler with Remote Web Viewer

Quake 2 GPL Source Release

ENet reliable UDP networking library

A protocol for secure client/server connections over UDP

A low latency, high framerate screen sharing server for Windows and client for browsers

🚀 Making multi-player gamedev simpler since 2017

Chad Strings - The Chad way to handle strings in C.

Reliable UDP networking library

A fast, compressed, persistent binary data store library for C.

Fast integer compression in C using the StreamVByte codec

An binary diff and patch library based on bsdiff algorithm for NodeJS (Windows, Mac, Linux).