The Apache Kafka C/C++ library
Simple and Fast Multimedia Library
Redis client and message queue for Clojure
Realtime application framework (Node.JS server)
An efficient feature complete C++ bittorrent implementation
jQuery Validation Plugin library sources
Simple REST and HTTP API Client for .NET
Test automation made simple
iLovePDF Rest Api - PHP Library
Goutte, a simple PHP Web Scraper
Make Zotero effective for us LaTeX holdouts
Modern JavaScript date utility library
Formatting library as an alternative to C stdio and C++ iostreams
Video game library manager with support for wide range of libraries
Make your application written in WPF keep up with modern design trends
The Ray Tracing in One Weekend series of books
A popular high-performance JSON framework for .NET
JSON library for Arduino and embedded C++. Simple and efficient
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Async PHP client/server API for the telegram MTProto protocol
A modern, C++-native, test framework for unit-tests, TDD and BDD
Android File Transfer for Linux (and macOS!)
Lightweight translator that allows you to translate and speak text
A Photo Editor library with simple, easy support for image editing
A file downloader library for Android with pause and resume support