Keep one. Free the rest.

Unduped finds duplicate files on your Mac and external drives, and shows how much space you’ll really get back.

Free to download and scan. Requires macOS 14 Sonoma or later.

• Honest numbers

  Many copies on a Mac share their data with the original, so removing them frees almost nothing. Unduped leaves those out and shows only the space you’ll actually get back. Why some copies free nothing

• Already in Photos

  Find photos and videos on your disks that are already in your Photos library. The copy in Photos stays, and Unduped never changes your library.

• Safe by design

  Every group keeps at least one copy. Everything goes to the Trash, and you can undo your last 5 cleanups.

• For developers

  Builds, caches and old toolchains that Xcode, Android Studio, Gradle and npm make again. What your projects still use stays.

• Private, with no subscription

  Everything happens on your Mac. No account, no tracking. Move up to 500 MB of duplicates and 5 GB of developer files to the Trash for free, then unlock the rest with a one-time purchase.