MQTT.fx

MQTT.fx

MQTT.fx is a free, open-source MQTT client that allows you to test MQTT servers. It has a simple, easy-to-use interface for publishing and subscribing to topics, along with handy features like a topic hierarchy view.
Network & Admin Mqtt Tools
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MQTT.fx alternatives ➤

MQTT.fx: A Free, Open-Source MQTT Client for Testing Servers

MQTT.fx is a free, open-source MQTT client that allows you to test MQTT servers. It has a simple, easy-to-use interface for publishing and subscribing to topics, along with handy features like a topic hierarchy view.

What is MQTT.fx?

MQTT.fx is a feature-rich MQTT client that enables you to easily test and work with MQTT brokers/servers. As an open-source cross-platform tool, MQTT.fx runs on Windows, Mac and Linux.

Some key features of MQTT.fx include:

  • Intuitive publish/subscribe interface to send and receive MQTT messages
  • Support for MQTT over TCP, SSL, WebSocket and Websocket Secure
  • Customizable connection settings for MQTT brokers
  • Topic hierarchy tree for visually browsing topics
  • Handy utilities like a topic monitor and message logger
  • MQTT v3.1.1 and v5.0 compatibility
  • Light and dark themes
  • Available completely free with no ads or restrictions

MQTT.fx is useful for IoT developers, or anyone who needs a straightforward MQTT client to test server connectivity, observe messaging activity, and publish/subscribe to topics during development and debugging.

MQTT.fx Features

Features

  1. MQTT client to publish and subscribe to topics
  2. Supports MQTT 3.1.1 and 5.0 protocols
  3. Clean and intuitive UI
  4. Topic hierarchy view
  5. SSL/TLS support
  6. WebSocket support
  7. Retained message support
  8. Last will and testament support
  9. Automatic reconnect
  10. Syntax highlighting for topic filters
  11. Dark mode support

Pricing

  • Free
  • Open Source

Pros

Free and open source

Easy to use

Good for testing MQTT servers

Available on Windows, Mac, Linux

Cons

Limited features compared to full-featured MQTT clients

No message persistence

No MQTT bridge support

Official Links

Official Website
https://mqttfx.jensd.de/

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