pubsub

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

Apache Pulsar - distributed pub-sub messaging system

An Open-Source, Cloud-Native, Distributed MQTT Message Broker for IoT.

ZeroMQ core engine in C++, implements ZMTP/3.1

deepstream.io server

🥊 Tiny 200 byte functional event emitter / pubsub.

Highly scalable realtime framework

Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)

μWebSockets for Node.js back-ends 🤘

A Microservice Toolkit from The New York Times

High performance, distributed and low latency publish-subscribe platform.

A micro library providing Ruby objects with Publish-Subscribe capabilities

WebSocket and WAMP in Python for Twisted and asyncio

Lightweight, fault-tolerant message streams.

Open source implementation of OPC UA (OPC Unified Architecture) aka IEC 62541 licensed under Mozilla Public License v2.0

WebSocket & WAMP in Java for Android and Java 8

Your high performance web application C framework

WAMP in JavaScript for Browsers and NodeJS

Easily generate gRPC services in Go ⚡️

💨 A real time messaging system to build a scalable in-app notifications, multiplayer games, chat apps in web and mobile apps.

Domain-Driven-Design Pub/Sub Domain-Events framework

Pusher server implementation compatible with Pusher client libraries.

Ruby client for NATS, the cloud native messaging system.

🔬 Writing reliable & fault-tolerant microservices in Node.js https://hemerajs.github.io/hemera/

iodine - HTTP / WebSockets Server for Ruby with Pub/Sub support

Fast and reliable message broker built on top of Kafka.