The best open source alternative to Czkawka is WinDirStat. If that doesn't suit you, our users have ranked more than 100 alternatives to Czkawka and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Czkawka are dupeGuru, Tron Script, AntiDupl and FSlint.
Comprehensive disk analysis tool offering treemap visualizations to identify large files, duplicate detection, and versatile cleanup actions. Operates offline, ad-free, and open-source, it runs portably on Windows without registration, providing a lightweight solution to manage disk storage.
dupeGuru is a free and open source tool to find duplicate files on your computer. It can scan either filenames or contents. The filename scan features a fuzzy matching algorithm that can find duplicate filenames even when they are not exactly the same.
Tron is a collection of programs, tools, utilities, and Windows functions that are all scripted together. Those programs and such are designed to remove malware and bloatware, repair damaged operating systems, update old versions of very common applications, free up drive space...
AntiDupl.NET can find and display duplicate images in the main graphic formats: JPEG, GIF, TIFF, BMP and PNG. The comparison is based on the contents of the files, so the program can find not only almost identical, but similar images.
FSlint is a utility to find and clean various forms of lint on a filesystem. I.E. unwanted or problematic cruft in your files or file names. For example, one form of lint it finds is duplicate files. It has both GUI and command line modes.
Video Duplicate Finder is a cross-platform software to find duplicated video (and image) files on hard disk based on similiarity. That means also finds duplicates which have a different resolution, frame rate etc.
FDUPES is a program for identifying or deleting duplicate files residing within specified directories.
Blazing-fast, all-in-one system optimizer. Improve your computer's efficiency with powerful cleaning and tuning tools.
A commandline tool to find unnecessary files (duplicates, tmpfiles, unstripped binaries and more)
fclones is a command line utility that identifies groups of identical files and gets rid of the file copies you no longer need. It comes with plenty of configuration options for controlling the search scope and offers many ways of removing duplicates.
Duplicate Detector is a GUI utility for finding duplicate files, allowing you to delete or link them to save space. Duplicate files are displayed and processed on two synchronized panels for efficient and convenient operation.
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Czkawka 4.0.0 is far more flexible and precise than dupeGuru 4.2.1. dupeGuru 4.2.1 has just one setting.