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