MQTT Explore

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About this app

MQTT Explore – MQTT Client & Topic Analyzer

MQTT Explore is a powerful MQTT client for developers, IoT projects, and smart home environments.
The app is ideal for testing, analyzing, publishing, and monitoring MQTT data streams – mobile, clear, and reliable.

Whether you are debugging MQTT, integrating Home Assistant, or monitoring live sensor data, MQTT Explore gives you full control over your MQTT connections.



Connect to MQTT brokers
Quickly and easily connect to almost any MQTT broker.

Topic Explorer (tree view)
Browse, analyze, and monitor MQTT topics in a clear, hierarchical tree view.

Publish MQTT topics
Send MQTT messages directly from the app – ideal for testing, control, and debugging.

Manage retained topics
Retained messages are clearly marked and can be selectively deleted.

ChartView – visualize MQTT data
Visualize MQTT payloads in real-time charts and spot trends at a glance.

JSON parsing and formatting
Automatic structuring and clear display of JSON messages.

Timestamp detection
Detects timestamps in payloads and converts them into readable date and time values.

Watchlist for important topics
Keep an eye on relevant MQTT topics at all times.

Home Assistant MQTT Auto Discovery (experimental)
Automatic detection of Home Assistant devices and entities via MQTT Discovery.
Displays JPEG and PNG binary data directly from MQTT topics and supports rendering Valetudo maps (e.g. robot vacuum maps).

Modern, high-performance UI
Optimized for large topic structures, high message rates, and mobile use.


Ideal for

• MQTT client for developers
• Smart home monitoring
• Home Assistant MQTT setups
• Valetudo robot vacuums and map analysis
• IoT and sensor projects
• MQTT debugging, publish, and subscribe

Download MQTT Explore now and efficiently analyze, test, and control your MQTT data streams.

What’s new

Minor bug fixes