1.centrifugal / centrifugo
Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.
Ranked by Attention Score: stars gained over the last 90 complete days
25 repositories by Attention Score · Aug 6, 2026 – Nov 3, 2026 (UTC)
Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.
Bidirectional and low-latency communication for every platform
Embedded web server, with TCP/IP network stack, MQTT and Websocket
Package gorilla/websocket is a fast, well-tested and widely used WebSocket implementation for Go.
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
Translated🔥 A network library that is easier to use than libevent/libuv/asio. A c/c++ network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT/Redis client/server.
Library for building WebSocket servers and clients in Python
canonical libwebsockets.org networking library
HTTP and WebSocket built on Boost.Asio in C++11
An asynchronous event driven PHP socket framework. Supports HTTP, Websocket, SSL and other custom protocols.
Turn any program that uses STDIN/STDOUT into a WebSocket server. Like inetd, but for WebSockets.
Asynchronous, non-blocking HTTP & WebSocket client for the JVM
A C# implementation of the WebSocket protocol client and server
SuperSocket is a high-performance, extensible socket server application framework for .NET. It provides a robust architecture for building custom network communication applications with support for multiple protocols including TCP, UDP, and WebSocket.
Websockets in swift for iOS and OSX
:notes: Minimalist websocket framework for Go
A conforming Objective-C WebSocket client library.
Highly scalable realtime pub/sub and RPC framework
Socket.IO integration for Flask applications.
A barebones WebSocket client and server implementation written in 100% Java.
:zap: Primus, the creator god of the transformers & an abstraction layer for real-time to prevent module lock-in.