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jdupes vs Prunr: catalog facts
jdupes	Prunr
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Fast duplicate detection across large folders Can replace duplicates with hard links or symlinks	Duplicate finder and disk usage analyser in one app Previews and auto-selection for safer cleanup
Command-line only, with no graphical interface Deletion options need care to avoid removing wanted files	Young project with a small user base No documented command-line mode
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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