Visual Compare of Two Images
Compare two images pixel by pixel and instantly see the areas that differ, highlighted in a color of your choice. The two images are automatically adjusted to the same dimensions if they don't match exactly.
How it works
The two images are resized to the smallest common dimensions (minimum width and height), then each pixel of image A is compared with the corresponding pixel of image B. If the color difference exceeds the chosen sensitivity threshold, the pixel is highlighted in the selected color in the result image; otherwise it is shown in faded grayscale to bring out the areas that change.
What if the two images don't have exactly the same dimensions?
No preparation is needed: the tool automatically crops both images to the smallest common width and height before comparing. For a perfectly reliable comparison, however, use images with identical or very close dimensions, otherwise cropping may slightly shift the content being compared.
How do I adjust the detection sensitivity?
A low threshold detects even very slight color variations (useful for spotting subtle edits), while a high threshold ignores JPEG compression noise or small brightness differences and only reports clear differences between the two images.
Pixel-by-pixel comparison happens entirely in your browser: your two images are never sent to a server.