Czkawka

Overview

Czkawka is a free file-cleanup utility for people who want to find duplicates and other unnecessary files across selected locations. Its range of search tools and GUI, CLI, and Android frontends make it adaptable, though the GTK release is no longer receiving binaries.

Searches can target duplicate or empty files, empty folders, temporary and large files, similar images or videos, and duplicate music. You choose the directories and files to scan, which is useful for focused cleanup but means the tool does not simply scan your whole device by default.

Key features

Flexible duplicate searches

Duplicate-file matching can use file name, file size, full-file hash, or a combination of size and name. That choice gives users different ways to identify candidates; the tool also handles similar images, videos, and music through separate searches. Previews and automatic selection can help narrow cleanup choices, while folder exclusions keep recurring scans focused. Selected items can be sent to the Recycle Bin or Trash rather than removed outright.

Scanning and privacy

The project says Czkawka uses multithreading and efficient algorithms, with caching to speed up repeat scans. Those are useful design choices for recurring cleanup, but there are no performance figures to indicate how long a scan will take on a particular collection.

The project says the software has no internet access and collects no user information or statistics. That will appeal to people who prefer local file utilities, though this does not replace checking the locations and selections before deleting files.

Frontends and maintenance

Czkawka includes GUI and CLI frontends, an Android frontend, a core library, and Python bindings. The reusable czkawka_core library is used by the project’s frontends, making the tool relevant beyond desktop users who want a ready-made interface. The Czkawka GTK 12.0 release is the last, and no new binaries are planned for that frontend. Krokiet prebuilt binaries have no mandatory runtime dependencies, but its similar-video search requires ffmpeg at runtime.

The maintainer invites bug reports and pull requests, but GTK-specific issues and feature requests are generally closed. The repository identifies itself as the project’s direct source alongside its prebuilt-binaries project, crates.io projects, and Flathub; it says there is no official website. The repository code is MIT-licensed, while Krokiet and Cedinia are GPL-3.0-only.

Pricing

Czkawka is free to use, with no ads, at no cost. There is no free trial because there is no paid plan described. Its free access makes it a practical choice for personal or routine cleanup without a subscription or usage cap mentioned here.

Platforms

Czkawka is cross-platform, with coverage for Android, Linux, macOS, and Windows. The GUI, CLI, core library, and Android frontend give it more than one route to use, but GTK’s final binary release makes Krokiet a more relevant choice for users who want a current prebuilt graphical option. Users of Krokiet’s similar-video search also need ffmpeg installed at runtime.

Who it's for

Czkawka suits people who want one free utility for several kinds of file cleanup, especially those comfortable selecting scan locations and reviewing candidates before using automatic selection. CLI users, developers interested in the reusable core or Python bindings, and people seeking a no-internet file utility may also find it a good fit. It is less suitable for someone who needs continued GTK binaries or wants similar-video searches without installing ffmpeg for Krokiet.

Pros and cons

• Pros: Free to use with no ads, making repeated cleanup accessible without a paid tier.
• Pros: Searches cover duplicates, empty and temporary files, large files, similar media, and duplicate music, reducing the need for separate utilities.
• Pros: Multiple match methods, previews, exclusions, automatic selection, and Trash support provide useful control over identifying and handling files.
• Pros: The project says it has no internet access and gathers no user information or statistics.
• Cons: No new GTK binaries are planned, limiting that frontend for users who expect continued releases.
• Cons: Krokiet’s similar-video tool requires ffmpeg at runtime.
• Cons: The project publishes no benchmark figures, so scan speed cannot be judged from stated performance claims alone.

Alternatives

For a broader comparison of tools in this category, browse Duplicate File Finders.

• dupeGuru is another free duplicate-file finder for Linux, macOS, and Windows; pick it if you want a focused alternative for duplicate searches.
• fclones is a free MIT-licensed command-line utility for Linux, macOS, and Windows; it is the natural alternative for users who want a command-line duplicate finder.
• Space Wizard offers a free home-drive plan with up to 100 GB per scan on Linux, macOS, and Windows; consider it if that scan cap fits your needs.
• AllDup is free for private users and companies, but runs on Windows only; choose it if you need a Windows-only option.
• Auslogics Driver Updater is a Windows driver updater rather than a duplicate-file utility, so it serves a different need.
• CloneSpy is a free duplicate-file cleanup tool for Windows; choose it if your cleanup work is limited to Windows.
• Duplicate Cleaner offers a free basic edition for personal and home use on Windows, with a trial also available; consider it if those limits suit your use.
• Folder Size offers free folder and file size analysis, disk usage charts, and local or external drive scanning on Windows; pick it when disk-usage analysis is the priority.

Verdict

Czkawka is a strong fit for people who want a free, privacy-focused utility that handles several types of file cleanup across desktop and Android platforms. Its breadth, configurable matching, and multiple frontends are the main reasons to choose it. Look elsewhere if you depend on ongoing GTK binaries, or need Krokiet’s similar-video search without the ffmpeg runtime requirement.