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Cisdem Duplicate FinderdupeGuru
Paid

Free download to try, with a paid license for full use.

 Free

Free and open source under the GPL 3.0.

Windows, macOS, iOS Windows, macOS, Linux
  • Compares files by content, not just names
  • Finds similar photos as well as exact duplicates
  • Fuzzy image matching finds resized and re-encoded copies
  • Separate music mode that compares tags rather than bytes
  • Full version requires purchase
  • Closed source
  • Last release was July 2022 and the project is asking for maintainers
  • Fuzzy matching is slow on very large photo collections
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-3.0
Not stated if an account is needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

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