For people with more than one drive
Know what is on every disk you own, even the ones in a drawer.
One scan catalogues a drive offline, finds duplicates and silently corrupted files across all of them, and syncs with nothing lost until you say so.
- Finds bit-rot, and the healthy copy A file whose contents changed while its size and date did not is flagged, and Whichdisk points at an intact copy on another drive.
- One scan, every answer The same catalogue serves search, duplicates, folder comparison and sync. Drives can stay unplugged; the catalogue remembers them.
- Nothing is deleted without a safety copy Every sync and clean-up is previewed first, and anything it would remove or overwrite is copied to a folder you choose, so you can undo it.
Hear when it ships
One email at launch, one or two before it. No tracking, no sharing, unsubscribe any time.
Whichdisk runs entirely on your Mac and never uploads your files or catalogues.