mqttx ☆
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Description:
Cross-platform MQTT 5.0 Desktop Client
Type: Cask  |  Latest Version: 1.13.1@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  @EMQTech  |  formulae.brew.sh
Category: Developer tools
Tags: mqtt iot messaging debugging desktop-client
Install: brew install --cask mqttx
About:
MQTTX is a sleek, cross-platform desktop client designed for MQTT 5.0 protocol testing and debugging. It offers an intuitive user interface for managing connections, publishing messages, and subscribing to topics in real-time. Its primary value is simplifying the development and troubleshooting of IoT and messaging applications.
Key Features:
  • Cross-platform support (macOS, Windows, Linux)
  • MQTT 5.0 and 3.1.1 protocol support
  • Visual payload formatting and syntax highlighting
  • Multiple connection management and simulation tools
Use Cases:
  • Developing and debugging IoT device communication
  • Testing MQTT broker configurations and message flows
  • Educational tool for learning MQTT protocol basics
Alternatives:
  • MQTTool – iOS-focused mobile client, not cross-platform desktop
  • HiveMQ MQTT Client – Web-based client, often used for quick browser-based testing
Version History
Detected Version Rev Change Commit
Sep 20, 2026 10:11am 1.13.1 0 VERSION_BUMP 40359d3b
Jan 23, 2026 1:31pm 1.13.0 0 VERSION_BUMP 5ae513a0
Sep 15, 2023 8:32am 1.9.6 0 VERSION_BUMP 23c39e40
Aug 4, 2023 10:15am 1.9.5 0 VERSION_BUMP 0097716c
Feb 12, 2023 7:29am 1.9.1 0 VERSION_BUMP bc160f28
Nov 7, 2022 5:12pm 1.9.0 0 VERSION_BUMP 72c432a7
Oct 12, 2022 7:14am 1.8.3 0 VERSION_BUMP c56c646c
Aug 23, 2022 5:16pm 1.8.2 0 VERSION_BUMP e35c4ac3
Aug 15, 2022 1:32pm 1.8.2 0 VERSION_BUMP 5a532e81
Aug 11, 2022 9:53am 1.8.2 0 VERSION_BUMP 2aa02c03
Jul 30, 2022 2:48am 1.8.1 0 VERSION_BUMP 57969879
Jun 23, 2022 10:30pm 1.8.0 0 VERSION_BUMP af62b37a
Jun 22, 2022 8:48pm 1.7.3 0 VERSION_BUMP faf1e4e0
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