Image Comparison Slider

Compare two versions of a picture with a draggable slider, then export the comparison as an image.

Original image (before)

Revised image (after)

Split direction

Reveal position: 50%

How it works

Load an original and a revised picture — they are aligned by their top-left corner so you can see exactly what changed.
Drag the slider (or the handle on the image) to wipe between the two versions. Switch between a horizontal and a vertical split.
The images are scaled to the same display width; for a fair comparison use two pictures that are already the same size.
Export saves the current slider view as a PNG so you can share the before/after. Both images stay on your device.