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Czkawka vs PhotoSweeper: catalog facts
Czkawka	PhotoSweeper
Free Free and open source under the MIT licence, with no advertising.	Paid Paid app with a free trial download.
Windows, macOS, Linux, Android	macOS, iOS
Finds duplicates, similar images, similar videos and similar music Written in Rust and multithreaded, with caching for repeat scans	Works with Apple Photos, Capture One and Lightroom Classic Finds similar shots, not just exact duplicates
The Czkawka GTK interface ends at 12.0; new work goes to Krokiet Similar-image matching produces false positives you must review	Paid after the trial Mac only on the desktop
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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