Image Comparison
View two images side by side or with a slider, and compare dimensions and size. It is a visual check, not an authenticity verdict.
First picture
PNG, JPEG, or WebP up to 12 MB. Compared in your browser.Second picture
PNG, JPEG, or WebP up to 12 MB. Compared in your browser.Your result
| First | Second | Change |
|---|
How to use it
- Choose the first and the second picture.
- Switch between side by side, slider, and changed pixels.
- Read the table of differences.
Examples
- Same picture twicephoto.png and a copy Identical, pixel for pixel
- An editA box drawn on one copy 1.8% of pixels changed, shown in red
Tool details and privacy
Compare two pictures side by side, with a slider, or as a map of changed pixels, and see the size and file differences.
The changed-pixel map shows exactly what an edit or compression touched.
Options
- A pixel counts as changed when a channel differs by more than 16 out of 255.
Limits
- The changed-pixel map needs two pictures of the same size, up to 16 million pixels.
- It shows differences, not which picture looks better.
Privacy
Your files stay on your device. They are opened in your browser and never uploaded.
Questions
Do the pictures need the same size?
Only for the changed-pixel map.
What does red mean?
A pixel that changed noticeably.
Which files work?
PNG, JPEG, and WebP.
Are they uploaded?
No.