See also: ContentSync, Dedup

[KirillOsenkov]

Nice tool!

I wrote something similar:
https://github.com/KirillOsenkov/ContentSync

It's like robocopy, but based on contents, not timestamps. You can run it in -whatif mode where it will just print the differences, but won't do anything. Or you can run it for real, and it will make the second directory identical to the first by deleting, adding or rewriting files.

Also tangentially related:
https://github.com/KirillOsenkov/CodeCleanupTools/tree/main/FindDuplicateFilesUI

A WPF app to find duplicate files in a given directory, and allows you to delete duplicates.