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EMQX vs Eclipse Mosquitto: catalog facts
EMQX	Eclipse Mosquitto
Best for: Engineers running large MQTT deployments for IoT or connected vehicles	Best for: Home automation and IoT setups that need a self-hosted MQTT broker
Free + paid options A free start is offered; enterprise licences and managed plans are paid.	Free Free and open source under the EPL/EDL licences.
Linux, Self-hosted	Windows, Linux, Self-hosted, Command line
Full MQTT 5.0 support plus MQTT over QUIC Masterless clustering for high availability All 4 strengths for EMQX Full MQTT 5.0 support plus MQTT over QUIC Masterless clustering for high availability Gateways for CoAP, LwM2M and MQTT-SN Built-in data integrations	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
Business Source License, not open source since 5.9.0 Aimed at large deployments rather than small home setups	A broker only, with no graphical interface for managing messages Requires familiarity with MQTT and broker configuration
Self-hosted, Hosted service	Downloadable app, Self-hosted
Not open source	Open source
License: BSL-1.1	License: EPL/EDL
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for EMQX emqx.com github.com/emqx/emqx Catalog checked October 2, 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.