Snoop is the open source WPF spying utility created by Pete Blois when he was employed at Microsoft.

It allows you to spy/browse the visual tree of a running application (without the need for a debugger) and change properties, view triggers, set breakpoints on property changes and many more things.

Download Link:- https://github.com/snoopwpf/snoopwpf

This site is under maintenance,
some features might not work!!!