Command-line client for WebSockets, like netcat (or curl)
A barebones WebSocket client and server implementation
μWebSockets for Node.js back-ends
A server side alternative implementation of socket.io
Socket.IO server implemented on Java
An embedded web server
websocket and http client and server library, with TLS support
Just another simple, fast, and resilient open-source WebSockets server
A simple server for sending and receiving messages in real-time
HTTP proxy server,support HTTPS & websocket
Minimal and idiomatic WebSocket library for Go
Polyglot replacement for Ruby WebSocket servers with Action Cable
A Socket.IO client library for Java
Realtime application framework (Node.JS server)
Eclipse Tyrus is the open source JSR 356 - Java API for WebSocket
Fast, well-tested and widely used WebSocket implementation for Go
arduinoWebSockets
Network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT client
Universal Ruby library to handle WebSocket protocol
Compliant web server for the most demanding of applications
Bringing Http/Https and WebSockets High Performance servers for PyPy3
JSON-RPC 2.0 implementation over WebSockets for Node.js
deepstream.io server
WebSocket client library built on SwiftNIO
High performance Node.js webserver with a simple-to-use API