Notes 
No privacy features but a neat little tool to declutter your computer and free disk space.
Reviewed by Marco Wollank
Czkawka
github.com/qarmin/czkawka 2 ratings so far*
Rate Czkawka: No account needed
Threat level
Covered
A covered pick. Anyone can use it as a private drop-in, with no setup or know-how. Enough for most people. Threat levels
Our take
Listed honestly as having no privacy features at all, and that candor is the right framing: it’s a fast, free, open-source declutter tool for finding duplicates and junk, nothing more. As disk hygiene it’s excellent and cross-platform, a genuine free rival to paid Mac duplicate finders. Don’t reach for it expecting any data protection, because it offers none. Pick it purely to reclaim space without paying.
GitHub at a glance
qarmin/czkawka cleanerduplicatesmultiplatformoptimizationoptimizerrustsimilar-imagessimilar-musicsimilar-videos
Stars
34,815
+233 this week
Forks
1,251
159 watching
Last commit
today
healthy
Latest release
12.0.2
2mo ago, 43 total
Star history
Issues
77% closed
296
open
1,007
closed
+18 / -40
opened / closed, last 4 weeks
Opened vs closed, last 12 weeks
Commits, last 26 weeks
24 commits, active 11 of 26 weeks
92 contributors since Sep 2020
Languages
- Fluent 46.5%
- Rust 41.4%
- Slint 9.4%
- Other 2.7%
Updated daily from the GitHub API. Star tracking since Jun 15, 2026.
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BleachBit Shredding files and wiping unallocated disk space to minimize data remanence.
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