Detailed guide: https://www.cisdem.com/resource/find-duplicate-pictures-mac.html
When you are running out of disk space on your computer, it’s time to find and remove duplicate files. This guide will show you the easiest solution to find duplicate files and delete them to free up space on Mac. To do that, you need a duplicate file finder like Cisdem Duplicate Finder (https://www.cisdem.com/duplicate-finder-mac.html).