Best Message Broker Software 2026

It suits developers and teams building self-hosted messaging systems across multiple protocols and programming languages.

Open-source Java messaging middleware implementing JMS and Jakarta Messaging APIs.

Managed broker service for Apache ActiveMQ and RabbitMQ, including setup, operation and maintenance.

Open-source messaging system combining pub/sub, request/reply, streaming, queues, key-value, and object storage.

Open-source platform that publishes, stores, and processes event streams for data and applications.

Self-managed messaging platform combining queues, event streams, and request/reply.

Multi-protocol IoT broker combining MQTT with JMS, AMQP, and STOMP, plus clustering and MQTT bridging.

ApsaraMQ for MQTT suits teams building cloud messaging around MQTT or WebSocket.