• MQTT Snooper 1
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MQTT Snooper

MQTT Client :
- Multiple topic (one click subscribe / unsubscribe)
- One click publication replay
- Publication filter
- Display publication in hexadecimal if the program guess that the payload is not UTF8
- Save a publication payload to a file
- Allow to publish from a file
- Automatically detect image publication (PNG/GIF/JPEG) then display a thumbnail
- Multiple configuration supported for connection
- Function related to publication : Delete one publication, delete all publication on one level, copy payload, view payload in hexadecimal
- Publish in hexadecimal / utf-8
- Run as a service, can still receive publications while in background
- Basic statistics : Total payload received, total message received.
- Support notification on topic change
- Support basic secure connection (no client certificate)
- IPv6 support
Any suggestion to improve the program are welcome !

Category : Tools

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Reviews (25)

jim. Feb 21, 2021     

Love the fact that I can subscribe to a topic and set an alert on it. I have an application where I am testing the range of a sensor, this makes it very easy to walk the expected range and see where the blind spots are. Only suggestion would be to change the notification sound if possible.

Dav. T. Nov 3, 2018     

I gave up due to the absolutely awful colour scheme. Ridiculous and some fields very difficult to read. Sorry! It may be good but it's so ugly to look at just because of poor colour choices.

Mar. S. Dec 25, 2019     

This app is really good, except for that hideous color scheme. Please, pretty please, let us change the theme to something that's less appalling.

Pet. V. Feb 4, 2022     

Not sure why people are whining about the colors, they're fine. This is the first app out of 4 that let me do what I wanted, which was to see all messages on my broker without fuss.

Pau. H. May 30, 2020     

On my galaxy s7 terribly slow unresponsive and unreadable menus. Terrible ui colour choices. Deleted it very quickly. Sorry it's unusable.

Mik. W. May 22, 2020     

Simple, extremely useful interface. Love the filtering on text within the alert or topic!

Ben. S. Apr 25, 2020     

good mqqt viewer, a little faffy on the setup,but once you figure it out it ok. good notification setup to.

W. H. Oct 11, 2018     

Best app out there. Notification works and so does the persistent connection/service.

Jon. R. Dec 1, 2021     

Does everything you could possibly need to set up and diagnose MQTT (and then some!)

Bal. S. Jul 10, 2019     

Brilliant. The ability to change colours would be a nice addition.

Nil. H. Nov 24, 2021     

Seems to do what I want, but the dark background makes it hard to read sometimes.

Nev. D. Feb 21, 2021     

Not really a snooper as you need to know the topics etc. Wanted it for my IoT projects where during development my published messages might change

Yug. V. D. K. S. Jan 30, 2022     

Worst app It does not connect to MQTT server on Public IP

Chr. L. Dec 26, 2020     

Does what it says. Great job to the developer

Arj. K. Jun 2, 2020     

Great Swiss army knife

Rob. A. Jan 16, 2018     

Great tool to develop mqtt applications. Lets you see everything, publish data and clear out retained items. Multiple connections and topics can be saved and toggled on. If you are exploring mqtt you need this format debugging.

A. G. u. Apr 20, 2018     

Almost perfect except it won't connect to my broker which is using a Let's Encrypt certificate. Adding an option to the host definition to not validate the certificate would probably solve the issue and give this app a 5-star rating.

Tom. R. May 11, 2018     

Does exactly what it says & what I wanted, thanks!

Mat. F. Mar 23, 2018     

Easy to use and complete MQTT client.

Mar. G. Jun 28, 2017     

Extremely useful, and fantastic responses from the developer. Can highly recommend

A. G. u. Jun 23, 2017     

One of the few apps which supports all functions of mqtt protocol

A. G. u. Dec 19, 2016     

Useful for discovery and configuration of android clients. Cut paste etc. Super useful, thanks!

Ger. V. F. Dec 15, 2016     

I also find it very easy to use

Pet. S. Oct 14, 2016     

Am I missing something? On reboot the client is disconnected and subscribes are off. Yes the unit should reconnect and resubscribe on powerup to be useful for important incoming messages. Will re review if fixed

Kor. Z. Nov 18, 2017     

Great for testing, graphing numeric data would be useful.