The extension allows you to compare files in two shelvesets.
Version for VS2019.
based on https://github.com/hamidshahid/shelvesetcomparer from Hamid Shahid.
improved in https://github.com/dprZoft/she
The Shelveset Comparer extension allows you to compare the content of two shelvesets without needing to unshelve any of them. You can use it compare yours as well as anyone else's shelvesets.
Once installed the extension appear as "Shelveset Comparer" Button on your Team Explorer:
Clicking on the button (Or opening it from the Tools menu) will show up a panel that displays all your shelvests. You have option of selecting two different users too and view their shelvesets:
Select two shelvests from the list and click on the compare button. You will see a tools window with files for both the shelvests displayed side by side. You can click any two files and view differences: