Duplicate File Finder by Nektony - Duplicate File Finder is a Free app to find and remove duplicates on your Mac.
beaTunes - Smart software for library management, music analysis, and playlist creation. For Windows and macOS.
dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
Mixed in Key - Mixed In Key is award-winning DJ software that gives you the #1 technique of the world's best...
MacPaw Gemini 2 - The intelligent duplicate file finder
KeyFinder - Key estimation software for DJs