Exact content hashes
The exact path uses a SHA-256 content hash, so identical files can be identified without relying on the filename.
Optional clean-up
Find the copies. Keep the one you meant.
An optional scan compares content hashes and perceptual hashes, then shows the matches for review. The scan is off by default; it is a clean-up tool, not an automatic deleter.
- Exact + near
- Review first
- Off by default
Possible duplicate2 files
IMG_2841.jpg12.4 MB, 2009
IMG_2841 (1).jpg12.3 MB, 2009
Content hashes match. Review the pair before removing either file.
An illustrative duplicate review. The scan is opt-in and the decision is yours.
Clean-up, carefully
Find repetition without losing the original.
A photo library collects copies: exports, downloads, phone transfers and second saves. The duplicate scan is there to make that visible, not to make destructive decisions for you.
Near-duplicate perception
A perceptual hash can surface visually similar files that are not byte-identical, such as resized or re-encoded copies.
Review before removal
The result is a review surface. The scan does not silently delete files, and the feature is off until you enable content hashing.
Enable content hashing
The scan is optional. Turn it on when you want the library to compute and compare hashes.
Run the duplicate pass
The worker compares the hashes and groups the files that look like the same photo.
Review the pairs
Keep the version you meant, remove the extra one after checking it, and leave the rest alone.
The honest part
Not a roomba
- The scan is off by default and is not an automatic deletion feature.
- A perceptual match is a suggestion, not proof that two files are interchangeable.
- Duplicates are not a backup strategy. Keep an independent backup.
Good questions
Duplicate photos, answered.
Is duplicate scanning on by default?
No. Content hashing is opt-in. The duplicate cards read zero on a default install until you enable it.
Does it delete duplicates automatically?
No. The scan shows matches for review. You decide what to keep.
Does it find similar photos, not just exact copies?
Yes. Exact duplicates use a SHA-256 content hash; a perceptual hash can surface near duplicates that are visually similar.
Keep exploring
Related features.
Local photo library
A library, not a second copy.
Index the folders you already have. No import, no upload, no proprietary store.
Browse the library
Browse by face, tag and location.
Dedicated people, tags and locations views, plus folder and date filters. Search and object recognition are coming.
Photo metadata
The story is already in the file.
Read keywords, ratings, dates, camera and GPS from the library you already have.
See it on your own library
Bring the folder.
Keep the originals.
Download the free beta, point it at a folder and try this on your own photos. No account, no upload, no card.
Windows 11 · Free 5,000-photo beta · No account needed