351 Open Source Pubsub Software Projects

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

Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge.

deepstream.io server

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

Apache Pulsar - distributed pub-sub messaging system

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

Highly scalable realtime framework

🥊 Tiny 200 byte functional event emitter / pubsub.

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

A Microservice Toolkit from The New York Times

μWebSockets for Node.js back-ends :metal:

A micro library providing Ruby objects with Publish-Subscribe capabilities

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

WebSocket and WAMP in Python for Twisted and asyncio

A distributed MQTT message broker based on Erlang/OTP. Built for high quality & Industrial use cases.

Lightweight, fault-tolerant message streams.

React to any event with serverless functions across clouds

Distributed cache and in-memory key/value data store. It can be used both as an embedded Go library and as a language-independent service.

WebSocket & WAMP in Java for Android and Java 8

WAMP in JavaScript for Browsers and NodeJS

Your high performance web application C framework

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

Easily generate gRPC services in Go ⚡️

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

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

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.

node.js object relations mapper (orm) for redis

HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5. It is the foundation of the HiveMQ Enterprise Connectivity and Messaging Platform

C# Twitch Chat, Whisper, API and PubSub Library. Allows for chatting, whispering, stream event subscription and channel/account modification. Supports everything that supports .NETStandard 2.0

Just a tiny, simple and real-time self-hosted pub/sub messaging service

NATS Operator

A scalable global Process Registry and Process Group manager for Erlang and Elixir.

Real-time messaging library for Go with scalability in mind.

A C# implementation of WAMP (The Web Application Messaging Protocol)

The official C# Client for NATS

An asynchronous messaging library, written in JavaScript, for node and the web browser

A simple pubsub package for go.

mangos is a pure Golang implementation of nanomsg's "Scalablilty Protocols"

Node.js client for Google Cloud Pub/Sub: Ingest event streams from anywhere, at any scale, for simple, reliable, real-time stream analytics.

NYBus (RxBus) - A pub-sub library for Android and Java applications

Event/Data distribution system without any configuration, but with data delivery guarantees

Divolte Collector

🌐🔥 Network multiplayer and messaging for CoronaSDK, Moai, Gideros, LÖVE & Defold

Simple WAMP (WebSocket Application Messaging Protocol) Javascript implementation

WAMP for C++ in Boost/Asio

📡 PostgreSQL LISTEN & NOTIFY for node.js that finally works.

Distributed caching based on StackExchange.Redis and Redis. Includes support for tagging and is cluster-compatible.

A Publish/Subscribe implementation on top of PostgreSQL NOTIFY/LISTEN

Apache Pulsar Manager

Node.js unicast discovery, leader-citizen elections and pub/sub.

🔊Minimalist message bus implementation for internal communication with zero-allocation magic on Emit

An exploration to host Wikipedia in IPFS

Interact with Twitch's API, chat and subscribe to events via PubSub, WebHooks and EventSub.

Easy to use Google Pub/Sub

Monad, Functional Programming features for Golang

Apache Pulsar Go Client Library

Go simple async message bus

AMQP message broker implemented with golang

🚀 Rocketman help build event-based/pub-sub code in Ruby

Distributed Flow-Based Programming via message queues

(M) Highly optimized, extremely modular and very flexible XMPP/Jabber server

An implementation of Actor, Publish-Subscribe, and CSP models in one rather small C++ framework. With performance, quality, and stability proved by years in the production.

Websocket RPC and Pub/Sub for Python applications and microservices

Java and Android class communication library: New and improved Pub-Sub

syn·di·cate: a language for interactive programs

Flare is a service that notify changes of HTTP endpoints

A high performance pubsub client/server implementation for .NET Core

Kafka-on-Pulsar - A protocol handler that brings native Kafka protocol to Apache Pulsar

Thrift improved

Data objects for JavaScript and PHP.

A full ecosystem that is built around kafka powered by golang

:clap: Microscopic & functional event emitter in ~350 bytes, extensible through plugins.

Object oriented event emitter based framework for building chat applications in Javascript.

Pub/sub system

The official .NET client library for Apache Pulsar

An in-process simple publish/subscribe library for golang

Google Pub/Sub client for Elixir

Reactive microlibrary with observables and Knockout-style computeds in 393 bytes

Dapr SDK for go

A Sidekiq-backed pub/sub layer for your Rails app.

Subscription and publishing server for Elixir applications.

Universal Serverless Web Framework. Write Express apps ready to be deployed to Zeit-Now, Google Cloud Functions (incl. functions reacting to Pub/Sub topics or Storage changes), and AWS Lambdas.

WAMP implementation in Lua

Apache Pulsar NodeJS Client

:incoming_envelope: A fast Message/Event Hub using publish/subscribe pattern with support for topics like* rabbitMQ exchanges for Go applications

Monad/MonadIO, Handler, Coroutine/doNotation, Functional Programming features for Rust

Streaming Anomaly Detection Solution by using Pub/Sub, Dataflow, BQML & Cloud DLP

:droplet: Publish/Subscribe utility module

A Pub-Sub abstraction for Laravel

💬 Publish-Subscribe (a.k.a Pub/Sub, EventBus) library for Android and JVM built with Coroutines

An Arduino / ESP8266 / Particle Photon compatible C++ library for communicating with a NATS (http://nats.io) server

Zeek's Messaging Library

Tiny data broadcaster with 0 dependencies

A JS pub/sub implementation

KubeMQ is a Kubernetes native message queue broker

Knativeのコンポーネントを理解しながらFaaSプラットフォームをDIYするワークショップです