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MQTTX

MQTTX is a free, open-source desktop app for Windows, macOS and Linux. A Powerful and All-in-One MQTT 5.0 client toolbox for Desktop, CLI and WebSocket. It has 5,068 GitHub stars and is released under the Apache-2.0 license. Its source code is on GitHub at emqx/MQTTX.

github.com/emqx/MQTTX (opens in a new tab)

  • Linux
  • macOS
  • Windows
  • Other
  • Actively maintained
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About MQTTX

MQTTX is a cross-platform MQTT 5.0 client tool open sourced by EMQ, which can run on macOS, Linux and Windows, and supports formatting MQTT payload.

Install MQTTX

Package names found in the project's README. Each links to its package page so you can check the publisher first.

Flathub (Linux)
flatpak install flathub com.emqx.MQTTX

Package page (opens in a new tab)

Homebrew (macOS)
brew install --cask mqttx

Package page (opens in a new tab)

Snap (Linux)
snap install mqttx

Package page (opens in a new tab)

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FAQ

MQTTX FAQ

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What is MQTTX?

MQTTX is a free, open-source desktop app for Windows, macOS and Linux. A Powerful and All-in-One MQTT 5.0 client toolbox for Desktop, CLI and WebSocket. It has 5,068 GitHub stars and is released under the Apache-2.0 license. Its source code is on GitHub at emqx/MQTTX.

Is MQTTX free and open source?

Yes. MQTTX's source code is public on GitHub under the Apache-2.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install MQTTX?

Flathub: flatpak install flathub com.emqx.MQTTX, Homebrew: brew install --cask mqttx and Snap: snap install mqttx. The commands are on this page. Installers are also on its GitHub Releases page (latest: v1.13.1).

Is MQTTX still maintained?

The repository's most recent commit was on Sep 30, 2026. appsgit only lists apps whose repository had a commit in the last six months.