Private browser image processing
Compare Image Differences
Highlight changed pixels in two equal-sized screenshots or images.
Tool settings
Select an image to begin.
No selected image is uploaded by this tool. Heavy pixel work runs in a dedicated browser worker where supported. The local preview is a raster result; keep your original.
How to use Compare Image Differences
- Select a compatible still image on your device; select a second one of equal size.
- Adjust tool settings; for manual cutouts, erase or restore areas directly on the preview.
- Process locally, inspect your image, and download the PNG output if satisfactory.
What this workflow actually does
Upload two images and mark large pixel channel differences in vivid pink.
Limitations and honest capabilities
Both images must be identical dimensions. False differences may result from JPEG compression or anti-aliasing. Animated files are decoded as a still frame, and image metadata is not retained in this export. A saved PNG is not a guarantee of visual quality: compare the source before publishing.
Browser-based operations depend on your device memory, browser codecs and image dimensions. Small test images are recommended before attempting large jobs. You can always return to the image tool directory to explore other useful workflows.