Compare software

MQTT5 ExplorerMQTTy
Free

Free and open source under the GPL-3.0 licence.

 Free

Free and open source under the GPL-3.0 license.

Linux Windows, Linux
  • Aims to support all MQTT 5 features
  • Works with any MQTT broker
  • Publishes messages and subscribes to MQTT topics
  • Supports multiple connections in separate tabs
  • Small project with a limited community
  • Release activity is not clear from the repository page
  • Requires access to an MQTT broker
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-only License: GPL-3.0
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.