DiskBuddy
Scans your Mac's storage once and shows it 8 ways, from duplicates to app leftovers.
DiskBuddy scans a Mac drive locally — 118 GB and 2 million-plus files in about 11 seconds in their own test — and renders the result eight ways, from treemap to age map, without rescanning. It finds an app's full footprint including scattered caches and preferences for a clean uninstall, byte-for-byte duplicates regardless of filename, and files untouched for over a year. Nothing is uploaded; the only network call checks your license key, and it keeps working two weeks without one. One-time $19, no subscription.
What holds up
- +Zero bytes leave your Mac — scanning, hashing, and duplicate matching all run locally
- +One-time $19 with no subscription, and it still works two weeks without a license check
- +Uninstall Completely removes an app's scattered caches and preferences, not just the app bundle
Mind the limits
- −macOS 14 or later only — no Windows and no support for older Mac versions
- −Never deletes automatically — everything lands in a staged list first, so cleanup still takes a manual pass
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