Czkawka

Finds duplicate files, similar images, similar videos and empty folders, and does it very fast.

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Run by third parties, not by Rafał Mikrut. Prefer the official page above when it works.

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About Czkawka

Czkawka scans for the things that quietly fill a disk: byte-identical duplicates, visually similar images, similar videos, similar music by tags or by sound, empty folders, empty files, temporary files, big files and broken symlinks. It is written in Rust and multithreaded, and it caches results so a second scan is far quicker.

Note the naming. The GTK4 interface called Czkawka is finished at version 12.0 and the project says no new binaries will be provided; the successor is Krokiet, a new interface on the same core, with Cedinia for Android. The engine also has a command line front end for scripting.

Strengths

  • Finds duplicates, similar images, similar videos and similar music
  • Written in Rust and multithreaded, with caching for repeat scans
  • Command line front end as well as a graphical one
  • No internet access and no telemetry at all

Limitations

  • The Czkawka GTK interface ends at 12.0; new work goes to Krokiet
  • Similar-image matching produces false positives you must review
  • Deleting from the results list is permanent and easy to do by accident
  • The naming of the three front ends is confusing

Details

Pricing
FreeFree and open source under the MIT licence, with no advertising.
License
MIT
Developer
Rafał Mikrut
Platforms
Windows, macOS, Linux, Android
How it runs
Downloadable app
Account
Not required
Works offline
Yes
Best suited for
Clearing out duplicate photos and files without paying for a cleaner
Last verified
Added
Provenance
Selected from the TechWalrus downloads catalog (Utilities); facts checked against the developer's own pages, 2 sources on file.

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