Fast and low latency asynchronous socket server & client C++ library
Cross-platform asynchronous I/O
A stream multiplexing library for Golang with minimal memory usage
Coroutine-based concurrency library for PHP
Gev is a lightweight, fast non-blocking TCP network library
Portable C library for proxy client support using standard SOCKETs.
BASIC for the modern era
Asynchronous socket networking library for Mac and iOS
A simple, non-blocking, NIO-based, TCP socket API for Java