Nektony has also rolled out Duplicate File Finder version 5.3 for macOS 10.9 or later. The utility is designed to help users find and delete all duplicate files en masse. 

Files are categorized by types for images, videos, music, archives, documents, and more. Every found file is displayed in a corresponding category with its location on the hard drive, a quick link to the Finder, as well with file preview. Version 5.3 allows users to organize and clean up tons of duplicates on a Mac and and an external hard drive.

Duplicate File Finder 5.3 is a free download at the Mac App Store (https://tinyurl.com/y73a9gtp) and allows the users to remove duplicates files. The pro version — available for a $4.99 in-app purchase —  allows the users to remove duplicate folders and merge folders.