Cross-platform asynchronous I/O

Embedded web server, with TCP/IP network stack, MQTT and Websocket

Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.

Higher level programming in C

WiredTiger's source tree

C implementation of statsd

Wt, C++ Web Toolkit

Monkey HTTP Server

Fast, 2D, mostly-HTML5-canvas-compatible rendering surface for Android.

Duda I/O is an event-driven and high performant web services framework which exposes a friendly C API

WSO2 WSF

A simple and efficient MsgPack binary serialization library in a self-contained header file

Serial Protocol (packet/frame based) library for Arduino intercommunication

Minor development fork of uriparser (http://uriparser.sourceforge.net/)