Find and Delete Duplicate MP3 Files on Mac
Last updated: 2026-09-30
If you’re tired of scrolling through your music library only to find multiple copies of the same MP3 files, you’re not alone. Duplicate files can clutter your Mac and take up unnecessary space. Luckily, finding and deleting these duplicates is easier than you think.
If they sit in folders, search for .mp3 in Finder, switch to list view and sort by name and size, so copies sit next to each other. Listen to any pair you are unsure about, back up first, and move the extra copies to the Trash so you can restore one if needed. If you DJ on Serato DJ Pro, Dupes finds duplicate tracks in your Serato library by comparing metadata such as file name, size and bitrate.
Dupes works only with Serato DJ Pro libraries, not with loose folders. Whichever route fits your setup, a regular cleanup frees up valuable storage space and makes it easier to find your favorite tunes.