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dupeGuruDuplicate File Finder
Free

Free and open source under the GPL 3.0.

 Freemium

A free version is available, and a paid Pro version unlocks more features.

Windows, macOS, Linux macOS
  • Fuzzy image matching finds resized and re-encoded copies
  • Separate music mode that compares tags rather than bytes
  • Scans external disks and cloud storage folders as well as the Home folder
  • Finds similar photos as well as exact duplicates
  • Last release was July 2022 and the project is asking for maintainers
  • Fuzzy matching is slow on very large photo collections
  • macOS only
  • Some features are reserved for the paid Pro version
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0 License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 21, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.