See the difference between two images.
Place two images together and drag a slider to compare them.
- Free
- No sign-up
- Files stay on your device
How it works
- Choose Image A.
- Choose Image B.
- Drag the slider left and right to compare.
About Compare Images
Numbers do not tell you how a compressed image looks. The honest test is to look at both versions together. Slimfile lays one image over the other, and a slider lets you uncover each one in the same place.
You also get the file size and pixel size of each image, plus a "Looks alike" score. A score near 100% means that the two images are nearly the same to the eye.
Questions
What does the "Looks alike" score mean?
It compares the colours of both images at a small sample size and reports how close they are on average. It is a quick guide, not a scientific measurement.
Can I compare images of different sizes?
Yes. The second image is stretched to fit the first one for viewing, so a different shape may look distorted.
What should I look at closely?
Check faces, small text and smooth areas such as sky. Those are where compression shows first.