Find forgotten files
Find the files you forgot you had.
Dup combines APFS birth time, modification date, and Spotlight's last-used signals to surface big files you haven't opened in months, with confidence badges and smart defaults.
Free to try macOS 13+
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Four time signals
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Safe-to-delete badges
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Stays on your Mac
How does Dup know a file is "forgotten"?
Dup combines four time signals (APFS birth time, last modified time, Spotlight's last-used date, and Spotlight's content-created date) to identify files you haven't opened in a while. The default is 1 MB or larger, untouched for at least 30 days, but every threshold is tunable. If a forgotten file also has a duplicate elsewhere, it gets a "safe to delete" badge. Everything runs locally: Spotlight queries and file metadata never leave your Mac.
Six tools, one app
Everything you need to keep your Mac clean, your library organized, and your storage healthy.
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