What Changed?

Drop two images.
See exactly what changed.

An instant, highlighted visual diff for designers, QA testers and video editors. Your files never leave this device.

A Before
Drop the Before image
or click to browse
B After
Drop the After image
or click to browse
Tip: paste a screenshot with Ctrl+V · drop two files at once · videos work too

Help & shortcuts

Views

1 HighlightChanged pixels in color over a faded copy
2 Side by sideLinked zoom and pan, mirrored cursor
3 SliderDrag the divider to wipe between images
4 FadeCross-fade Before into After
5 BlinkFlip between images; your eye spots the change
6 DifferenceRaw pixel difference; black means identical

Keyboard

Space (hold)Peek at Before. In Blink: pause or play
N / PNext / previous change
F · 0Fit to screen · actual size
+ / −Zoom in / out
S · BSwap images · show or hide boxes
D · RSave highlighted PNG · download report
, / .Previous / next video frame
← / →Move the slider divider
Ctrl/⌘+VPaste an image from the clipboard

Mouse & touch

Scroll or pinch to zoom, drag to pan, double-click to zoom in or fit. Click a box to select that change.

Privacy

Everything runs on this device. Images are never uploaded, and the app works offline.