Snoop is a badly named simple MSMQ queue inspector, does some stuff that can't easily be done otherwise:

1. provides a way to inspect your MSMQ queues
2. can decode Rebus messages
3. can copy/move/delete messages
4. can show exception details of failed messages
5. can move failed messages back to the source queue (i.e. "retry messages")
6. can purge and delete queues
7. can show the contents of the transactional dead-letter queue

You can download a ZIP file with Snoop here: https://mookid.dk/wp-content/uploads/2016/09/RebusSnoop.zip

Chocolatey

If you're hip with the hipsters and using Chocolatey, you can install Snoop via the following command: cinst Rebus.Snoop.