The Duplicate Finder is one of the many features of Disk Drill. Alongside file recovery, boot imaging, and storage visualization, Disk Drill is an excellent tool for finding and deleting duplicate files for Mac.
To use Duplicate Finder, simply download Disk Drill
, within the installation dialog drag it to the Applications Folder, and then launch the app. You are now on your way to saving your storage space.
Once you have the app downloaded, double-click on the downloaded file and proceed with installation. Next, launch Disk Drill from your app menu.