30 projects in Messaging & streaming

The open-source communication infrastructure for agents and products

Send push notifications to your phone or desktop using PUT/POST

Apache Kafka - A distributed event streaming platform

Distributed Task Queue (development branch)

Apache Flink

A realtime distributed messaging platform

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

High-Performance server for NATS.io, the cloud and edge native messaging system.

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

Apprise - Push Notifications that work with just about every platform!

📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail

The most scalable and reliable MQTT broker for AI, IoT, IIoT and connected vehicles

Web and API based SMTP testing

A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)

All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).

Apache Pulsar - distributed pub-sub messaging system

Open source RabbitMQ: core server and tier 1 (built-in) plugins

Simple, reliable, and efficient distributed task queue in Go

mailcow: dockerized - 🐮 + 🐋 = 💕