Dupin

What is Dupin?

Dupin is a native macOS utility that helps users find and manage duplicate tracks in the Music library. It is designed for people who keep large music collections and want more control over duplicate songs, repeated imports, and library cleanup. The app scans the library, groups matching tracks based on selected criteria, and lets you review details before deciding what to keep. It also includes tools for filtering results, identifying preferred copies, and purging unwanted duplicates from the library. Dupin fits best into workflows centered on local music management rather than general file deduplication, and it is aimed at users who actively organize Apple Music or legacy iTunes libraries on Mac. The app is published by Doug Adams.

Key features

• Find duplicate tracks in your Music library
• Group possible duplicates using selectable matching criteria
• Review track details before deciding what to keep
• Filter duplicate groups to identify preferred copies
• Purge unwanted duplicate tracks from the library
• Work with Music-library cleanup workflows on macOS

Safety overview

Status: Mostly safe

Dupin is a specialized music-library management tool, so access to your Music library is expected for its core job. Its main practical risk is accidental removal of tracks you did not intend to purge if you act too quickly while cleaning duplicates. Review duplicate groups carefully before deleting anything, especially if your library includes rare edits, live versions, or tracks with different metadata that may still matter to you.

Recommendation: Keep Dupin if you actively maintain a local Music library and use it to clean duplicate tracks. If you no longer manage your library this way, you can remove the app; doing so only takes away its duplicate-management features and does not remove your music by itself.

Common paths

• /Applications/Dupin.app

Related apps

• Music

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