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About this tool
Interactively compare two product images (e.g., Before/After or variations) side-by-side with a drag slider.
The Product Image Compare stacks two images in the same frame and wipes between them with a draggable vertical divider, so a retouch, a colour variant or a quality change shows up as a single continuous edit rather than two pictures you have to look at in turn. Image B is clipped by a CSS inset from the divider position and Image A shows through behind it, with the frame locked to Image A's aspect ratio. It is for anyone presenting a before-and-after where side-by-side thumbnails hide the difference.
Open Product Image Compare on AltFTool — it loads instantly in your browser.
Drop or click to add photos into the Upload Image A (Before / Variant 1) and Upload Image B (After / Variant 2) zones — any image file the browser accepts works.
Drag the white divider handle across the frame by mouse or touch to wipe between the labelled Image A and Image B views, which stay locked to Image A's aspect ratio.
Use the Show A, 50 / 50 and Show B buttons under Slider Position to snap the split to either extreme or the middle, and Start Over to clear both images.
Both images occupy the same pixels, so a change in shade or a moved edge appears where your eye already is instead of across two frames.
Show A, 50/50 and Show B buttons snap the divider to 0%, 50% and 100% when you want the full frame rather than a wipe.
The divider follows a finger drag on a phone, so you can review a comparison on the device you shot the photos with.
They should be. The frame takes its aspect ratio from Image A and both images are fitted inside it, so a mismatched Image B will letterbox and the wipe will not line up. Crop both to identical dimensions before loading for a clean comparison.
Image B is revealed to the left of the divider and Image A stays on the right, and both are labelled in the top corners of the frame. Dragging the divider all the way right shows Image B in full; all the way left shows Image A.
No — there is no export. This is a viewer for inspecting the pair on screen, so take a screenshot or a screen recording if you need to send the comparison to someone else.
No. Both files are read into an in-browser object URL and rendered locally, so unreleased product shots and client work never leave the tab.