Dupin Lite is described as 'is your iTunes duplicates manager. Dupin Lite handles your duplicate tracks in 3 simple steps:' and is an app in the File Management category. There are three alternatives to Dupin Lite for Windows and Mac. The best alternative is Dupe Eliminator for iTunes. It's not free, so if you're looking for a free alternative, you could try iTunes Duplicate Song Manager.
Dupe Eliminator for iTunes is an intuitive tool to Clean iTunes from unwanted duplicates and missing tracks. Easy to use yet full-featured Windows Maintenance and Cleaning solution to clean iTunes. Reclaim space for your iTunes Music Library!
Leawo Tunes Cleaner is a powerful iTunes cleanup tool, which can help you to delete duplicates in iTunes and get album artwork for iTunes music files.With it, you can clean up iTunes music library fast and comprehensively.