Compare Images
See two images side by side, find every changed pixel and measure the difference.
Pick two images
For example an original and its compressed version, or two screenshots from different builds. They don’t need to be the same size or format.
About this tool
Compare an original with its compressed copy, or two screenshots from different builds. Switch between a slider, side by side, a difference map and blink mode.
Interformat reports SSIM and PSNR, the standard measures of image similarity, and counts exactly how many pixels changed, with a tolerance for compression noise.