DupShelfDupShelf
Find duplicate photos on an external hard drive
Backup drives and old laptops often hold multiple copies of the same vacation, wedding, or family album. DupShelf scans the drive folder locally while it is plugged in.
Why external drives collect duplicates
- Copy-paste of the same folder twice before a trip
- Old phone backups merged into one drive without deduping
- Sync tools leaving Copy of… files next to originals
- Shared family drives where everyone drops the same wedding ZIP
Before you scan
Plug in the drive, wait until it mounts, and pick the top-level photo library folder in DupShelf. USB 2.0 drives are slower to hash; expect a longer scan but the same accurate results.
After duplicates are found
Move non-keepers into dupshelf-duplicate-images on that drive, verify in Explorer or Finder, then delete the duplicate folder to reclaim space. Keepers stay in their original paths.
Questions
- Is it safe for my only backup?
- DupShelf moves files, it does not delete them. Still make a second backup before bulk cleanup on irreplaceable archives.