Duplicate Annihilator for Photos
Duplicate Annihilator for Photos is a macOS photo management app that helps you find and remove duplicate images from Apple Photos libraries.
What is Duplicate Annihilator for Photos?
Duplicate Annihilator for Photos is a macOS photo management app for finding duplicate images inside Apple Photos libraries. It is designed for people who keep large photo collections and want help locating repeated imports, near-matches, and extra copies that make a library harder to organize. The app scans photos using multiple matching approaches so users can work with exact duplicates as well as more flexible comparisons based on photo data and image characteristics. It can mark matches for review or help move duplicates to the Photos trash, which fits workflows where users want to inspect results before cleaning up. The app is especially useful when duplicates come from repeated imports, format changes, or mixed photo sources such as iPhone, iCloud, and older libraries. Duplicate Annihilator for Photos is published by Brattoo AB and is focused on photo-library cleanup rather than general file deduplication across the whole Mac.
Key features
- Scan Apple Photos libraries for duplicate images
- Use different matching modes for exact and more flexible duplicate detection
- Compare photos using image data and metadata-based criteria
- Mark duplicate photos for review before taking action
- Help move detected duplicates to the Photos trash
- Prefer higher-quality originals in supported duplicate scenarios such as HEIC versus JPEG
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Safety overview
Status: Mostly safe
This is a legitimate photo-library utility whose access to your Photos library is consistent with its purpose. Because it works with duplicate detection and can help move items to the Photos trash, users should review matches before deleting anything, especially in libraries with edited images, shared content, or near-duplicates that may still be worth keeping.
Recommendation: Keep Duplicate Annihilator for Photos if you actively manage a large Apple Photos library or need help cleaning up repeated imports and duplicate images. If you no longer use it, removing the app is usually reasonable, but check any pending review sets in Photos first so you do not lose track of duplicates you still intended to inspect.
Common paths
/Applications/Duplicate Annihilator for Photos.app
Preference paths
~/Library/Preferences/com.brattoo.Duplicate-Annihilator-for-Photos.plist
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