Image Compare
Load two images and compare them four ways — a draggable slider reveal, side-by-side, an onion-skin opacity blend, and a pixel-level difference heatmap that highlights exactly what changed. Nothing is uploaded; every pixel is processed locally in your browser.
or drop / paste
or drop / paste
The slider reveals image A on the left and B on the right (drag the handle). Side-by-side shows both at equal width. Onion skin cross-fades B over A. Difference computes a per-pixel absolute channel difference — unchanged areas stay dark, changed areas light up; the threshold hides tiny noise and "Amplify" boosts faint differences so they're visible. If the two images aren't the same size, B is scaled to A's dimensions before differencing (noted in the stats). No network requests are made.