Command-line client for WebSockets, like netcat (or curl)
A barebones WebSocket client and server implementation
An embedded web server
Realtime application framework (Node.JS server)
Eclipse Tyrus is the open source JSR 356 - Java API for WebSocket
A Socket.IO client library for Java
websocket and http client and server library, with TLS support
Fast and low latency asynchronous socket server & client C++ library
Universal Ruby library to handle WebSocket protocol
Network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT client
Compliant web server for the most demanding of applications
arduinoWebSockets
A simple WebSocket server
Just another simple, fast, and resilient open-source WebSockets server
Coherent, zero-dependency, lazy, simple, GraphQL
Socket.IO server implemented on Java
Websockets for Laravel
Bringing Http/Https and WebSockets High Performance servers for PyPy3
deepstream.io server
WebSocket client library built on SwiftNIO
High performance Node.js webserver with a simple-to-use API
HTTP proxy server,support HTTPS & websocket
LaravelS is an out-of-the-box adapter between Laravel/Lumen and Swoole
μWebSockets for Node.js back-ends
Socket.IO-client for iOS/OS X