Fast Rust app that finds duplicates, big files, empty folders, temporary files and similar images or videos to free space.
Open-source alternative toTreeSize Personal and ProfessionalWizTree commercial licenceCCleaner
Czkawka and Krokiet at a glance
Checked 21 Oct 2026Czkawka (12.0, September 2026) is a multithreaded Rust app with 14 tools: duplicates by name, size or hash, big files, empty files and folders, temporary files, similar images, videos and music, broken files and more. Krokiet is the current desktop app for Windows, macOS and Linux; the older GTK app gets no new builds, and there is a CLI. No internet access or tracking. Core and CLI are MIT, the Krokiet app is GPL-3.0. It finds files to remove; it does not draw a disk map or clean browsers.
RepoQuarry. “Czkawka and Krokiet.” Checked 21 Oct 2026. https://repoquarry.dev/projects/czkawkaHow much of TreeSize Personal and Professional does it replace?
- Personal use
- Confirmed: Yes
- For a business
- Partial: Partly Commercial use with conditions: Free to use at work; GPL conditions apply if you distribute a modified Krokiet app
2 of 5 jobs. Strong duplicate and big-file search (also similar photos and videos); no treemap, usage history, reports or scheduled scans.
For see what uses disk space down to file level, export disk usage reports (Excel, scheduled scans and exports, see other TreeSize Personal and Professional alternatives. You may also need to build an interface, an API server and hosting yourself.
How much of WizTree commercial licence does it replace?
- Personal use
- Confirmed: Yes
- For a business
- Partial: Partly Commercial use with conditions: Free to use at work; GPL conditions apply if you distribute a modified Krokiet app
2 of 4 jobs. Duplicate and big-file search with no licence fee at work; no treemap or full-drive usage view.
For see what uses disk space, export file details to CSV, see other WizTree commercial licence alternatives. You may also need to build an interface, an API server and hosting yourself.
How much of CCleaner does it replace?
- Personal use
- Confirmed: Yes
- For a business
- Partial: Partly Commercial use with conditions: Free to use at work; GPL conditions apply if you distribute a modified Krokiet app
1 of 6 jobs. Finds temporary files and empty folders; no browser cleaning, updaters or scheduled cleaning.
For clear browser history, automatic and scheduled cleaning, disable programs that slow startup, driver Updater, software Updater for installed apps, see other CCleaner alternatives. You may also need to build an interface, an API server and hosting yourself.
Facts, with sources
Every answer links to where we found it. We read the documentation; we did not install it.
Czkawka does not have access to the Internet, nor does it collect any user information or statisticsgithub.com · czkawka#features ↗ today
license = "GPL-3.0-only"github.com · krokiet ↗ today
license = "GPL-3.0-only"github.com · krokiet ↗ today
Free, Open Source without any adsgithub.com · czkawka#features ↗ today
Prebuilt binaries are available for Windows 10/11, Mac and Ubuntu 22.04(base)/24.04github.com · krokiet#how-to-install ↗ today
Prebuilt binaries have no mandatory runtime dependencies.github.com · krokiet#how-to-install ↗ today
No licence changes since we started watching. Licence watch: follow Czkawka and Krokiet and we email you if its licence terms change.
Growth and activity in detail
Is it popular, and is anyone still working on it? From GitHub.
Numbers appear after the first nightly fetch from GitHub.