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Eclipse Mosquitto vs RabbitMQ: catalog facts
Eclipse Mosquitto	RabbitMQ
Best for: Home automation and IoT setups that need a self-hosted MQTT broker	Best for: Developers connecting services through a self-hosted message queue
Free Free and open source under the EPL/EDL licences.	Free Free under MPL 2.0; Broadcom sells a commercial edition with support.
Windows, Linux, Self-hosted, Command line	Windows, macOS, Linux, Self-hosted
Supports MQTT 5.0, 3.1.1 and 3.1 Light enough for single-board computers All 4 strengths for Eclipse Mosquitto Supports MQTT 5.0, 3.1.1 and 3.1 Light enough for single-board computers Includes mosquitto_pub and mosquitto_sub command-line clients Ships a C client library	Supports AMQP 1.0 and MQTT 5.0 Both queues and streams in one broker All 4 strengths for RabbitMQ Supports AMQP 1.0 and MQTT 5.0 Both queues and streams in one broker Runs locally, on-premises or in the cloud Client libraries for many languages
A broker only, with no graphical interface for managing messages Requires familiarity with MQTT and broker configuration	Running a cluster in production takes operational knowledge Extended support and some features are in the paid Tanzu edition
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: EPL/EDL	License: MPL-2.0
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Eclipse Mosquitto mosquitto.org Catalog checked October 2, 2026	Official website Full listing and sources Sources for RabbitMQ rabbitmq.com Catalog checked October 1, 2026

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