How it works
- Scan — PhotoDeDuper extracts a visual fingerprint from each photo using Apple's Vision framework and neural engine.
- Cluster — Similar photos are grouped together based on a configurable similarity threshold.
- Review — Browse clusters with a smart "best pick" suggestion based on face quality and visual saliency.
- Decide — Keep, delete, or skip — one photo at a time or in side-by-side comparison mode.
Features
- Comparison mode — View two photos side by side to spot differences.
- Diff mode — Overlay photos to catch subtle changes.
- Smart scoring — Ranks photos by face sharpness, lighting, pose, and visual interest.
- Adjustable similarity — From strict near-duplicates to looser groupings.
- Incremental scanning — Only processes new photos on subsequent scans.
- Review albums — Creates albums in Photos so you can double-check before deleting.
Privacy first
All processing happens on your device. No photos or data ever leave your Mac. No analytics, no tracking, no network connections.