Open the Photos app , look at the sidebar under "Utilities," and click Duplicates . You can then merge them into a single high-quality file. 2. dupeGuru (Free & Open Source)
If you are looking to clear out duplicates on your Mac, there are several reliable, safe, and even free alternatives that are actually built for macOS: 1. The Built-in macOS Method (Free) DoubleKiller-For-Mac-Full-Version-Free-Download
Users who want a simple, visual interface that "just works" with folders and external drives. Where to get it: Download it from the Mac App Store . Summary Comparison Best Use Case macOS Photos Cleaning up your photo library. dupeGuru General file deduplication with fuzzy matching. Czkawka Advanced users looking for maximum speed. Disk Drill Open the Photos app , look at the
Speed and efficiency. It can find duplicate images, broken files, and even "similar" videos. Where to get it: Available on GitHub . 4. Duplicate File Finder Remover (App Store) dupeGuru (Free & Open Source) If you are
Includes a free duplicate finder tool within its recovery suite.