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mqttuiMQTT CLI
Free

Free and open source under GPL-3.0.

 Free

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

Windows, macOS, Linux, Command line Windows, Command line
  • Interactive topic subscription and message publishing
  • Can print a single topic payload for scripts
  • Full MQTT 5.0 and 3.1.1 feature support
  • Interactive shell with syntax highlighting and command history
  • Requires access to an MQTT broker
  • Command line only, with no graphical interface
  • Some commands only apply to HiveMQ brokers
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: Apache-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 8, 2026

Checked October 2, 2026

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