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MQTT CLIMQTT5 Explorer
Free

Free and open source under the Apache 2.0 licence, backed by HiveMQ.

 Free

Free and open source under the GPL-3.0 licence.

Windows, Command line Linux
  • Full MQTT 5.0 and 3.1.1 feature support
  • Interactive shell with syntax highlighting and command history
  • Aims to support all MQTT 5 features
  • Works with any MQTT broker
  • Command line only, with no graphical interface
  • Some commands only apply to HiveMQ brokers
  • Small project with a limited community
  • Release activity is not clear from the repository page
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 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.