Czkawka is a simple, fast, written in Rust and easy to use app to remove unnecessary files from your computer.
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Flathub
- Snapcraft




The best open source alternative to Image Comparer is Czkawka. If that doesn't suit you, our users have ranked more than 50 alternatives to Image Comparer and 15 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Image Comparer are dupeGuru, AntiDupl, FSlint and Pixiple.
Czkawka is a simple, fast, written in Rust and easy to use app to remove unnecessary files from your computer.




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.




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.

Pixiple searches your files for images that are similar in pixel and/or metadata content and presents you with a sorted list of similar image pairs to compare and manipulate. Pixiple is open source, no-nonsense, unrestricted and completely free.

The concept of "blink comparison" method is simple - the app allows you to quickly switch pictures without delay so you can see the differences.




A commandline tool to find unnecessary files (duplicates, tmpfiles, unstripped binaries and more)

A program that can find duplicate or similar video files. Video simili duplicate cleaner compares the video content regardless of different format or compression used (digital video fingerprinting), while other software only find identical files .








Finddupe is a tool for quick detecting of duplicate files on a hard drive under Windows. Duplicate files can be detected, hardlinked, or deleted. Finddupe can also search for hardlinked files on your computer.

imagededup is a python package that simplifies the task of finding exact and near duplicates in an image collection.

DiffImg is a simple image comparison tool which take two images with the same size as input. Some statitics are computed and the positions where pixel differ are displayed as a color mask.

