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MQTTX

MQTTX is a free, open-source chat app for Windows, macOS and Linux. A Powerful and All-in-One MQTT 5.0 client toolbox for Desktop, CLI and WebSocket. It has 5,086 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)

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About MQTTX

MQTTX is an open-source, cross-platform MQTT 5.0 client toolbox from EMQ for developing, testing, and troubleshooting IoT applications. MQTTX Desktop runs on macOS, Windows, and Linux, with a chat-style interface for multiple connections and subscriptions and a built-in MQTTX Agent to set up connections, exchange messages, and troubleshoot in natural language. MQTTX CLI provides messaging, benchmarks, and data simulation for terminals and automation, while MQTTX Web lets you debug MQTT over WebSocket in the browser without installation.

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

Still curious? Email info@appsgit.com.

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: v1.13.2).

Is MQTTX still maintained?

The repository's most recent commit was on Oct 27, 2026. appsgit only lists apps whose repository had a commit in the last six months.