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Gemini 2 vs fdupes: catalog facts
Gemini 2	fdupes
Freemium Free download, with a paid license available to buy from MacPaw.	Free Free and open source.
macOS	macOS, Linux, Command line
Finds similar files as well as exact duplicates Scans Photos and Music libraries	Finds duplicates by file content Interactive or automatic deletion
macOS only Full use requires a paid license	Terminal only, with no graphical interface Deleting files needs care to avoid removing the wrong copy
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.