Dup

About

Unlike typical duplicate file finders that only identify identical copies, Dup analyzes the actual content of your files to detect true duplicates. It recognizes the same photo saved as HEIC and JPG, the same video in both 4K and 1080p resolutions, and files that have been renamed. In a test, Dup discovered 47 duplicate videos in a folder that three other applications failed to identify. Simply drag and drop a folder to view your duplicates and then delete them with a single click. Your data remains completely private as the application operates locally on your Mac without uploading any files. It is free to use.