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AllDup vs jdupes: catalog facts
AllDup	jdupes
Free Freeware, free for private users and companies.	Free Free and open source under the MIT licence.
Windows	Windows, macOS, Linux, Command line
Many comparison methods, including similar images and music Scans inside ZIP, RAR and 7Z archives	Fast duplicate detection across large folders Can replace duplicates with hard links or symlinks
Windows only Closed source	Command-line only, with no graphical interface Deletion options need care to avoid removing wanted files
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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