Utility
Compare two images
Your files are processed on your device. We never upload them.
First image
Second image
How to compare two images
- 01A ▸Choose the first image, then the second.
- 02A ▸Drag the slider to reveal one over the other.
- 03A ▸Or choose Difference to mark every changed pixel in red.
Questions
What does the difference view show?
The first image faded to grey, with every pixel that differs in the second image in bright red, and the share of pixels that changed.
Why does a re-saved JPG show differences?
Saving a JPG again changes pixels very slightly. Ignore tiny changes skips those; Exact shows every change, however small.
What if the images are different sizes?
The second image is scaled to the first one's size before comparing, and the result says so.
Can I check how much a compressed image changed?
Yes. Compare the original with the compressed copy using Difference and Exact.
Are my images uploaded?
No. Your files are processed on your device. We never upload them.