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Duplicate File Finder vs Prunr: catalog facts
Duplicate File Finder	Prunr
Freemium A free version is available, and a paid Pro version unlocks more features.	Free Free and open source under the MIT licence.
macOS	Windows, macOS, Linux
Scans external disks and cloud storage folders as well as the Home folder Finds similar photos as well as exact duplicates	Duplicate finder and disk usage analyser in one app Previews and auto-selection for safer cleanup
macOS only Some features are reserved for the paid Pro version	Young project with a small user base No documented command-line mode
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 October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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