Self-hosted messaging services.

Official Apache Kafka broker in KRaft mode.

Official Eclipse Mosquitto MQTT broker.

Simple server for sending and receiving push notifications.

Secure video meetings and conferencing for teams.

Open-source team messaging and collaboration platform.

Low-latency voice chat server.

Official NATS messaging server.

Lightweight publish-subscribe notification service.

Official RabbitMQ message broker with management UI.

Self-hosted SimpleX SMP relay server for private messaging.

Threaded team chat platform.