Compare software

MQTT ExplorerMQTT5 Explorer
Free

Free and open source under the MIT licence.

 Free

Free and open source under the GPL-3.0 licence.

Windows, macOS, Linux Linux
  • Hierarchical topic tree with activity visualisation
  • Diff view and per-topic history
  • Aims to support all MQTT 5 features
  • Works with any MQTT broker
  • Current version is still labelled beta
  • Focused on inspection and debugging rather than broker administration
  • Small project with a limited community
  • Release activity is not clear from the repository page
Downloadable app Downloadable app
Open source Open source
License: MIT License: GPL-3.0-only
No account needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked October 1, 2026

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