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AllDup vs Duplicate Cleaner: catalog facts
AllDup	Duplicate Cleaner
Free Freeware, free for private users and companies.	Freemium Free edition available; Duplicate Cleaner Pro is paid.
Windows	Windows
Many comparison methods, including similar images and music Scans inside ZIP, RAR and 7Z archives	Finds similar images even after editing or resizing Matches music by audio or tags
Windows only Closed source	Windows only Video matching requires the paid Pro edition
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License not stated
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 September 24, 2026

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