MQTT Viewer is a feature-rich and performant MQTT visualisation and debugging tool for Windows, Mac and Linux.
First and foremost, MQTT Viewer is fast, responsive and easy to use.
But wait, there's more:
| Feature | Status | Comments |
|---|---|---|
| Topic tree data visualisation | ✅ | |
| MQTT v3 + v5 compatibility | ✅ | |
| Run multiple concurrent connections | ✅ | Up to 10 supported. |
| Message publishing (+ v5 headers) | ✅ | |
| Interactive message timeline | ✅ | |
| Message comparison | ✅ | Currently only compares to previous message but I'm planning on making this more flexible. |
| Base64 + Hex + Protobuf codecs | ✅ | I'm thinking about redesigning how Protobuf encoding / decoding works. Please let me know here if you have thoughts on this. |
| Free-text / pattern-based filters | ✅ | ⭐ New! Let me know your thoughts on this here. |
| Publish history | ✅ | ⭐ New! Let me know your thoughts on this here. |
| Saved message collections | 🚧 | In progress |
| Client logs | 🚧 | In progress |
| Broker status page (based on $SYS data) | ❓ | Potential. Let me know if you might use this here. |
| In-app local test broker | ❓ | Potential. This would be an alternative to running a local mosquitto instance for debugging/development. Let me know if you might use this here. |
| Team workspaces + cloud collections sync | ❓ | Potential. Let me know if you might use this here. |
Don't see a feature that would make your life easier? I really, really want to know.
Warning
The move to make this codebase open-source was a very recent decision. Considering I didn't expect this code to ever see the light of day, there's a lot of internal cleanup, dependency updates and documentation that needs to be completed before I start accepting code contributions 🫧🧴📝
If MQTT Viewer has been helpful, right now the best ways to contribute are:
- Reporting bugs and making feature requests via GitHub issues
- Giving me honest, constructive feedback about what you like and don't like about MQTT Viewer via GitHub discussions.
- Seriously, nothing is too big or too small. Let me know how to make MQTT Viewer better for you.
- Letting others know about MQTT Viewer on your favourite social media or blogs.
- Leaving MQTT Viewer a testimonal!
MQTT Viewer is open-source under GPLv3.
All features are currently available to use freely.