vi/websocat

Turn any program that uses STDIN/STDOUT into a WebSocket server. Like inetd, but for WebSockets.

Simple, secure & standards compliant web server for the most demanding of applications

Simple to use, blazing fast and thoroughly tested WebSocket client and server for Node.js

Tunnel all your traffic over Websocket or HTTP2 - Bypass firewalls/DPI - Static binary available

C++ websocket client/server library

WebSocket emulation - Javascript client

Package gorilla/websocket is a fast, well-tested and widely used WebSocket implementation for Go.

A barebones WebSocket client and server implementation written in 100% Java.