Zero Duplicates Free Duplicate File Finder

Zero Duplicates is a free utility that finds and removes duplicate files based on some smart intelligence features. It finds identical files if the content, file extension and file size are the same regardless of the file name. It has built in safeguards which prevent you from using the program to delete all copies of a file. To use it, you specify the directories you want to scan before initiating a scan. It has a function to auto-select all duplicates in a folder; however, this failed to work for me during testing. Deleted files are removed from disk, not sent to the trash. The program does not scan Apple Photo libraries. You need to use other tools for that task.

Within the app, you can preview files and get size, path and file name information. It works with documents, images, videos, audio/music and more.

You can download Zero Duplicates for free on the Mac App Store. For more information, see the developer's web site.