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Image Compare in-browser

Compare two images side by side, across formats, with metadata and a similarity score. Nothing is uploaded.

Image A

Image B

Show difference map

Load image A and image B to compare.

DPI and bit depth are read from the file when present (PNG, JPEG). Similarity resizes both images to a common size, so different dimensions and formats can be compared.

Image A

Image A preview

Image B

Image B preview

Similarity

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Pixel match (RMSE over RGB, resized to a common size). Sensitive to exact pixel values.

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Perceptual match (difference hash). Robust to scaling and minor edits; reflects overall look.

Difference map

Brighter red marks larger per-pixel differences (both images scaled to a common size).

Runs fully client side. Images are analysed in your browser with canvas and PDF.js. No tracking. No file uploads to any server.

Expanded view

Image A

Image B