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