Before and after image comparison

A slider says more than two photos side by side

Placing two photos next to each other works, but your eye has to jump back and forth to spot what changed. A slider comparison keeps both images locked in exactly the same frame, so dragging the divider reveals precisely how one differs from the other at any point across the photo — a much more direct way to show an edit, a restoration, a before-and-after transformation, or a change over time.

How it works

Drop your two photos, and the slider appears over them, aligned to the same frame. Drag it left or right, either directly on the image or with the slider control underneath, to reveal more of one photo or the other exactly at the point you drag to.

Photos of different sizes

The two images don't need to be the same size or shape; each is fitted into a shared comparison frame sized to the wider of the two, so the slider still lines up sensibly even when the originals don't match exactly, without you having to crop or resize either photo first.

Dragging directly on the photo

The divider follows either the slider control below the image or a direct drag on the image itself, whichever feels more natural, so you can quickly sweep back and forth over the exact area you want to inspect closely, whether that's a face, a texture, or a small detail somewhere in a corner.

Privacy

Both photos are loaded and compared entirely in your browser. Neither one is ever uploaded anywhere.