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Image Diff (Compare Two Images)

Compare two images pixel by pixel with a red diff overlay and change percentage. Great for QA, design review and before/after checks.

  • Runs in your browser
  • No upload on server
  • Free, forever
  1. Add photo
  2. Adjust
  3. Download
How this works
  1. 1
    Drop two images

    Load an original and a variant. Same dimensions gives the cleanest diff.

  2. 2
    See the differences

    Changed pixels light up so it's obvious what moved, added or vanished.

  3. 3
    Save the overlay

    Export the highlighted diff to share in reviews or bug reports.

Watch: differences light up between two inputs

Pick two images, then click Compare images. Every changed pixel will glow pink.

How this works
  • Choose two images — screenshots, design revisions, or before/after photos.
  • We resize them to a shared canvas and compare every pixel locally in your browser.
  • Pink pixels mark real differences. Tune sensitivity if you only care about big changes.

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