messaging

A 100% native C# implementation of ZeroMQ for .NET

ChatSecure is a free and open source encrypted chat client for iOS that supports OTR and OMEMO encryption over XMPP.

zenoh unifies data in motion, data in-use, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks.

Messaging library for Python.

Graphical client for the Soulseek peer-to-peer network

An easy to use .NET API for RabbitMQ

Keep passwords and other sensitive information out of your chat logs and inboxes.

In-memory message queue with an Amazon SQS-compatible interface. Runs stand-alone or embedded.

Kafka-style message streaming in Go. Built on NATS. Single binary, no JVM, no ZooKeeper.

:bus: Simple and lean service bus implementation for .NET

IoT Platform Framework

An ultra-lightweight and blazing-fast Messaging Bus/MQTT Broker for Edge & SDV

Apache ActiveMQ

JeroMQ is a pure Java implementation of the ZeroMQ messaging library, offering high-performance asynchronous messaging for distributed or concurrent applications.

An AI agent for teams, communities, and multi-user environments.

An improved drop-in replacement for SQS

Unofficial open source mtproto server written in golang with compatible telegram client.

RocketMQ企业级一站式服务平台

The gold standard for async .NET microservices on Azure, AWS and on-prem

Pluggable foundation blocks for building distributed apps.

Crossbar.io - WAMP application router

:satellite: BroadcastChannel to send data between different browser-tabs or nodejs-processes :satellite: + LeaderElection over the channels https://pubkey.github.io/broadcast-channel/

golang im server

The magma server daemon, is an encrypted email system with support for SMTP, POP, IMAP, HTTP and MOLTEN,. Additional support for DMTP and DMAP is currently in active development.

MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.

Notification library for gophers and their furry friends.

:speech_balloon: Android Chat SDK ➜ Stream Chat API. UI component libraries for chat apps. Kotlin & Jetpack Compose messaging SDK for Android chat

Chat SDK Android - Open Source Mobile Messenger

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

Telegram MCP server powered by Telethon to let MCP clients read chats, manage groups, and send/modify messages, media, contacts, and settings.