Duplicate file finder for Mac

Compare files by content rather than by name, because a renamed copy is still a duplicate and two files with the same name are often unrelated. FreeUpDisk groups candidates by exact byte size, hashes a small window of each to eliminate most of them, then hashes in full before confirming a match. macOS has no built-in duplicate finder outside the Photos app.

Only for photos. Photos on macOS 13 and later shows a Duplicates album for items inside your photo library, which does nothing for files elsewhere on the disk. Finder has no equivalent, and a Finder Smart Folder can filter by name, kind and size but cannot compare file contents.

APFS clones. When you copy a file inside the same volume, macOS often stores one set of blocks with two names pointing at it. Both entries report the full size in Finder, and deleting one returns no space, because the data was never duplicated. FreeUpDisk detects clones and reports them at zero rather than inflating the total.

FreeUpDisk proposes keeping the copy in the more established location, which is usually the older path outside Downloads and Desktop. Both paths and the proposed decision are shown before anything happens, and you can flip which copy survives.

For exact byte matches, yes, since the two files are identical. The risk sits with similar-looking photos, where an edited version is a different file you may want to keep. FreeUpDisk never removes an image match automatically, and anything removed stays in Recovery for 30 days.

No. Duplicates are found by Deep Scan, which explains and recommends but never removes on its own. FreeUpDisk clears only application caches, logs and Trash older than 30 days without asking. Every duplicate group waits for your decision.

Yes. The scan, the grouped results and the reclaimable total cost nothing with FreeUpDisk, because scanning is read-only. Cleaning uses credits called Sweepers and the first cleanup is free. There is no subscription.