Cross-platform asynchronous I/O

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

A time-series database for high-performance real-time analytics packaged as a Postgres extension

NGINX-based Media Streaming Server

A modern, portable, easy to use crypto library.

FreeRDP is a free remote desktop protocol library and clients

C in four functions

A cross-platform, linkable library implementation of Git that you can use in your application.

A tiling window manager for X11

The FreeBSD src tree publish-only repository. Experimenting with 'simple' pull requests....

Free (libre) font editor for Windows, Mac OS X and GNU+Linux

xhyve, a lightweight OS X virtualization solution

http request/response parser for c

Minimalistic C client for Redis >= 1.2

ZipArchive is a simple utility class for zipping and unzipping files on iOS, macOS and tvOS.

Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.

Tesseract OCR iOS is a Framework for iOS7+, compiled also for armv7s and arm64.

A small self-contained alternative to readline and libedit

The Fast Lexical Analyzer - scanner generator for lexing in C and C++

A toolkit for embedding hypervisor capabilities in your application

The system statistics collection daemon. Please send Pull Requests here!

Multi-format archive and compression library

https://github.com/json-c/json-c is the official code repository for json-c. See the wiki for release tarballs for download. API docs at http://json-c.github.io/json-c/

Go-style concurrency in C

The granddaddy of HTML tools, with support for modern standards

Adafruit GFX graphics core Arduino library, this is the 'core' class that all our other graphics libraries derive from

regular expression library

Darwin is the Open Source core of macOS, and PureDarwin is a community project to extend Darwin into a complete, usable operating system.

A tiny neural network library

libharu - free PDF library