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Duplicate file finders for Windows

To find duplicate files on Windows, compare how each tool decides that files match and what it lets you do with them. The apps below document duplicate finding on Windows; check pricing and the notes before deleting anything.

Conditions checked

  • Windows
  • Find duplicates

Before you choose

A match is not proof that two files are identical copies you can delete. Back up before removing files.

Documented conditions compared

Each cell reflects the catalog's current qualified sources for this platform. Not documented means unknown, not unsupported. Notes and sources are on each app below.

AppFree
CzkawkaDocumented
dupeGuruDocumented
Duplicate CleanerFree, important features paid · One-time purchase

Products with evidence for these conditions

Listed alphabetically, with no paid placement. Inclusion establishes these documented conditions, not a hands-on endorsement or a guarantee of fit.

  • Czkawka

    Windows

    Windows · Find duplicates · Free

    • The GUI covered by the project's README is now called Krokiet, the successor to the older Czkawka GTK interface (last released as version 12.0, no further binaries planned); both share the same duplicate-finding core, which also finds similar (not identical) images.

  • dupeGuru

    Windows

    Windows · Find duplicates · Free

    • Compares filenames or file contents; Picture mode also finds photos that are similar but not identical.

  • Duplicate Cleaner

    Windows

    Windows · Find duplicates

    • The free tier has only basic functionality and is for personal/home use, not for a commercial environment; Pro adds the features below.

Sources for the apps above were checked between 2026-09-26 and 2026-09-28.

Common questions

Is it safe to delete every duplicate a tool finds?

Not without checking. Tools differ in whether they compare names, sizes, content or image similarity, and this guide hasn't tested their accuracy. Review the matches and keep a backup.

Are duplicate finders free?

Some are free and some are paid or freemium. The pricing column shows what each source records; a free download is not proof that every feature is free.

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