Compare images

Find what changed between two versions of a picture, a design or a screenshot: differences light up in red, with the share of pixels changed and a swipe view. Nothing is uploaded.

Runs in your browser. Your files are never uploaded or stored.

First image

Second image

Something not working, or missing an option?

How to use Compare images

  1. Choose or drop the first image, then the second.
  2. See the differences in red. Change the sensitivity to ignore small ones.
  3. Drag the slider to swipe between them, or save the differences as a picture.

Questions

Why is everything red?

The images probably have different sizes or one was moved or resized, so nearly every pixel differs. It works best on two versions of the same picture.

Are my files uploaded?

No. The tool runs inside your browser, and the page is blocked from sending data anywhere. You can check by turning off your internet connection: it keeps working.

Open-source parts

Full license texts