duplicate photo finder.
Find exact and visually similar pictures locally using SHA-256 content hashes and perceptual difference signatures.
JPG, PNG, WebP where supported • Multiple files supported • Processed locally
Browse files ↗How to duplicate photo finder
Exact duplicates have identical bytes. Visually similar images may have different names, resolution or compression settings. A difference hash compares coarse changes between adjacent pixel brightness samples, so it is useful for discovering likely matches but can also produce false positives. Always confirm visually before deleting originals.
- Select several files from your photo folder.
- Choose exact matches or visual similarity and adjust the sensitivity.
- Review grouped previews, compare dimensions and export a CSV audit report.
Accuracy, privacy and limitations
Browsers cannot delete files from your computer. Similarity signatures are heuristic and may miss rotations or substantial crops.
Practical advice for a cleaner result
Always keep a copy of your source files. Compare the new image at 100% zoom, test it in the application where it will be used, and make one change at a time when a result looks unexpected. Browser memory limits depend on device and image dimensions.
duplicate photo finder FAQ
Will this delete my original photos?+
No. The tool only analyzes the local files you select.
Can it find differently compressed photos?+
Yes, visual hashing may identify likely matches despite different bytes.
What makes exact and similar groups different?+
Exact grouping uses file bytes; similar grouping uses a perceptual signature threshold.