DiskBuddy
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Duplicates

Files that exist twice, confirmed byte for byte.

Every match is a full hash, never a guess from a name. Keep the first copy and stage the rest in one click. APFS clones, which share their storage, are recognised and left alone so nothing is counted twice.

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DiskBuddy Duplicates room listing groups of identical files with a Keep first button on each.
  • Two cheap passes, then a full SHA-256 to confirm
  • Keep first, stage the rest, one click per group
  • APFS clones spotted and excluded from the total

How it works

01

Confirmed, never guessed

Two quick passes narrow the candidates by size and a partial read, then a full SHA-256 confirms every match. A file is only called a duplicate when every byte agrees.

02

Keep one, stage the rest

Each group shows every copy and where it lives. Keep the first and stage the others with one click, or pick by hand.

03

Clones left alone

APFS clones share their storage, so deleting one frees nothing. DiskBuddy recognises them and leaves them out of the total.

04

Your threshold

Set the smallest file worth checking, from 100 KB up, so the list is about space rather than about thousands of tiny files.

Questions about Duplicates

How does DiskBuddy know two files are duplicates?+

It compares size first, then a partial read, then a full SHA-256 hash of both files. Only files whose full contents match are grouped.

Does it find similar photos?+

Duplicates finds exact copies. Photos that look alike but differ in their bytes are not grouped.

Is anything deleted automatically?+

No. Extra copies are staged in the cleanup queue, and nothing moves until you review it and press Clean.

The other rooms

One app for the whole disk

Every room in one download. Pay once, keep it, and every update is included.

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