Data-Block Utilities
Show users, merge duplicates, find similar, and more.
Reviews with five stars
This addon is life. The only nitpick I have is that I didn't find an option to list he duplicate images & meshes before merging them, but aside that, it's a lifesaver tool for people who like to keep their .blend tidy
This is the one and only life-saving tool I've ever looked for. Great addition!