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DUDE (DUplicates DEtector)

On the record

Changed-file check
Before processing files, DUDE compares their state with stored data and aborts the action if it detects an inconsistency.github.com · read 8 Oct 2026
Command line
Command-line parameters can start scans, generate CSV reports, and integrate DUDE with a user's file manager.github.com · read 8 Oct 2026
Downloads
Portable executable packages are available for Linux and Windows, with separate PyInstaller and Nuitka builds.github.com · read 8 Oct 2026
Duplicate detection
It compares files using content hashes, so different filenames or extensions do not prevent duplicates from matching.github.com · read 8 Oct 2026
Duplicate matching
It compares file content hashes, so different filenames or extensions do not affect duplicate results.github.com · read 8 Oct 2026
File actions
Users can move marked files to Trash or Recycle Bin, delete them, create hard or soft links, or create Windows .lnk shortcuts.github.com · read 8 Oct 2026
File manager integration
Optional command-line parameters can start scans immediately or integrate DUDE with a file manager.github.com · read 8 Oct 2026
Filtering
The app supports regular-expression and glob-expression syntax.github.com · read 8 Oct 2026
Folder scanning
It can scan up to eight designated folders and optionally display results in Cross paths mode.github.com · read 8 Oct 2026
Image and text tools
Version 2.x adds image similarity detection, including rotated images, and preview windows for images and text files.github.com · read 8 Oct 2026
Image similarity
Version 2.x includes image similarity detection with caching, sensitivity settings, and rotated-image detection.github.com · read 8 Oct 2026
Integrity check
Before processing files, DUDE compares their current state with stored scan data and aborts the action if it finds an inconsistency.github.com · read 8 Oct 2026
License
The project is licensed under the MIT license.github.com · read 8 Oct 2026
Notable limit
Hard links are currently ignored during scanning and cannot be processed as duplicates.github.com · read 8 Oct 2026
Notable limitation
Hard-linked files are currently ignored during scanning and cannot be processed as duplicates.github.com · read 8 Oct 2026
Platforms and downloads
Portable executable packages are available for Linux and Windows, including Windows 10 and 11.github.com · read 8 Oct 2026
Purpose
DUDE is a cross-platform GUI utility for finding duplicate files so users can delete or link them to save space.github.com · read 8 Oct 2026
Safety
Scanning and marking do not change the filesystem; file deletion or linking requires confirmation and is logged.github.com · read 8 Oct 2026

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