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RabbitMQ vs Eclipse Mosquitto: catalog facts
RabbitMQ	Eclipse Mosquitto
Best for: Developers connecting services through a self-hosted message queue	Best for: Home automation and IoT setups that need a self-hosted MQTT broker
Free Free under MPL 2.0; Broadcom sells a commercial edition with support.	Free Free and open source under the EPL/EDL licences.
Windows, macOS, Linux, Self-hosted	Windows, Linux, Self-hosted, Command line
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	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
Running a cluster in production takes operational knowledge Extended support and some features are in the paid Tanzu edition	A broker only, with no graphical interface for managing messages Requires familiarity with MQTT and broker configuration
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: MPL-2.0	License: EPL/EDL
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for RabbitMQ rabbitmq.com Catalog checked October 1, 2026	Official website Full listing and sources Sources for Eclipse Mosquitto mosquitto.org Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.