mqttui
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Description:
Subscribe to a MQTT Topic or publish something quickly from the terminal
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: mqtt iot terminal networking debugging
Install: brew install mqttui
About:
Mqttui is a lightweight, terminal-based user interface for MQTT clients. It allows users to interactively subscribe to topics, view incoming messages in real-time, and publish messages directly from the command line. The tool is designed for quick debugging and monitoring of MQTT brokers without the need for heavy GUI applications.
Key Features:
  • Interactive terminal UI for browsing topics and messages
  • Support for both subscribing and publishing to MQTT topics
  • Lightweight and fast, written in Rust
  • Keyboard-driven interface for efficient navigation
Use Cases:
  • Debugging IoT device communication in real-time
  • Monitoring MQTT broker traffic from the terminal
  • Quickly publishing test messages to trigger device actions
Alternatives:
  • mosquitto_pub/mosquitto_sub – Standard CLI tools that are script-friendly but lack an interactive UI.
  • MQTT Explorer – A comprehensive GUI tool that offers a visual overview but requires a desktop environment.
Version History
Detected Version Rev Change Commit
Sep 16, 2025 3:39am 0 VERSION_BUMP 49168400
Sep 14, 2024 8:18am 0 VERSION_BUMP 804541e3
Jul 30, 2024 12:42pm 0 VERSION_BUMP 07ef8ef2
Apr 17, 2024 4:43pm 0 VERSION_BUMP 22a7f000
Apr 17, 2024 3:36pm 0 VERSION_BUMP 61b737f0
Sep 30, 2023 10:19am 0 VERSION_BUMP 7eccface
May 17, 2023 11:59pm 0 VERSION_BUMP 87da8ae3