Compare software

rmlint vs AllDup: catalog facts
rmlint	AllDup
Free Free and open source.	Free Freeware, free for private users and companies.
Linux, Command line	Windows
Very fast duplicate detection on large file trees Finds empty files, empty folders and other lint as well	Many comparison methods, including similar images and music Scans inside ZIP, RAR and 7Z archives
Mainly a command-line tool Aimed at Linux and Unix-like systems	Windows only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License: Freeware
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.