MQTT Explorer

An all-round MQTT client that provides a structured topic overview

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Version 0.4.0-beta.6

MQTT Explorer is a comprehensive MQTT client that provides a structured overview of your MQTT topics and makes working with devices/services on your broker dead-simple.


  • Visualize topics and topic activity
  • Delete retained topics
  • Search/filter topics
  • Delete topics recursively
  • Diff view of current and previous received messages
  • Publish topics
  • Plot numeric topics
  • Retain a history of each topic
  • Dark/Light Themes
  • See Changelog to see all features

The hierarchical view makes this tool so easy to use and differentiates the MQTT Explorer from other great MQTT clients like MQTTLens, MQTTBox and MQTT.fx.
This MQTT Client strives to be a MQTT swiss-army-knife, the perfect tool to integrate new services and IoT devices on your network.


Developing this tool takes a lot of effort, sweat and time, please consider rating the App on the Windows or Mac app store .
If you feel like a feature is missing or you found a bug, please leave me a comment / issue and I’ll see what I can do.

Platform   Downloads
windows Windows
portable, installer
mac Mac
Intel, ARM
How to start untrusted apps
ubuntu Ubuntu
debian, mint, neon, fedora, etc…

snap install mqtt-explorer
Ubuntu Store
linux Linux
almost every linux
AppImage, deb
Run AppImage:
Make it executable and double-click it.

More Downloads


MQTT Explorer


This MQTT Client is optimized to handle thousands of topics and at hundreds of thousands messages per minute.

Custom subscriptions can limit the amount of messages MQTT Explorer needs to process, subscriptions can be managed in the advanced connection settings.
In very large productive environments brokers may handle an extreme load of topics, subscribing with a wildcard topic is in this scenario not advised.

IoT Applications

List of useful IoT applications using MQTT to integrate devices / services


What do you like?

What can be improved?

Email (optional)

Ideas and bugs can also be reported on github.


App telemetry has been removed, we rely on your bug reports to GitHub issues