With Dupin you can:

• Very quickly find all sets of duplicate iTunes tracks based on your choice of criteria

• Select the "Keeper" tracks from among a number of duplicates automatically using a variety of versatile filtering options

• Consolidate the play, skip, and ratings information from all tracks in a Dupe Group to the single "Keeper" track

• Re-populate iTunes playlists replacing "non-Keeper" tracks with "Keeper" tracks

• Remove duplicate tracks from iTunes and send files to the Trash

• Audition tracks with Quick Look

• Manage intentionally duplicated tracks

• Delete duplicate "dead" tracks

• View duplicates in non-loaded libraries created with iTunes' multiple library feature

• Sort tracks and view track info

• Export a list of duplicates to a text file

• Locate tracks in the Finder and in iTunes

In addition, Dupin features:

• Compatibility with iCloud Music Library/Apple Music

• Support for Notifications

• Familiar iTunes-like interface

• Robust Documentation via the Help Menu

• Ample keyboard shortcuts

• Customizable toolbars

• Optional update checking

Compatibility: OS X 10.8 or later 64-bit

** iTunes: 11 or iTunes 12