ImageReasonLocal Image Analysis Lab
Which of these local files might be worth comparing side by side?
Choose up to 50 local images and they stay in this browser. See coarse thumbnail-hash candidate pairs to review manually, never an automated duplicate or deletion decision.
Answer
Your image is decoded and analyzed in this browser tab only. It is never uploaded, transmitted, or stored anywhere else, and nothing about it reaches analytics.
Analyze images to see the downsample/hash limitation.
Want to learn more? Private Browser-Local Image Analysis
Explore results
| File A | File B | Hash distance |
|---|
Analyze images to generate a copyable plan.
A review queue, not a verdict
Similar-looking frames still require a human choice. This private browser tool creates coarse thumbnail-hash candidates, so you can review a smaller set without uploading any image. A low hash distance is not proof that two files are duplicates, and a high distance does not prove they are different photographs. Compare the originals before deciding.
Two identical local fixtures have a hash distance of zero. A crop or exposure edit may raise the distance even when the scene is related, while two different low-detail images can happen to hash similarly. Treat the list as a review queue. Inspect full-resolution originals and confirm independent backup before you delete or archive anything in your own workflow.
The optical values here are ideal geometric limits, not measured lens performance. Focus, motion, aberrations, subject contrast, sensor processing, crop, and output can change practical detail.
Your selected file is processed in this browser. Image bytes, metadata, filename, pixels, and derived results are not uploaded or sent to analytics. A rendered-file measurement is not proof of RAW data, scene conditions, provenance, or artistic quality.
Compare the chosen crop and output at the intended physical size and viewing distance. A proof is more informative than a generic PPI or quality label because it includes the actual subject, processing, paper, and display context.
FAQ
- Will this delete duplicate photos?
- No. It never deletes, uploads, or selects a keeper. It provides local candidate pairs for your manual review.
- Is this a guarantee?
- No. The result is bounded by the inputs and assumptions shown on the page. It is designed to support a better next decision, not replace a test, measurement, proof, or professional judgement where one is needed.