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