AV-I17
Image Compare
Compare two images with a slider and a pixel difference heatmap, and measure how much changed.
● Runs on your device; nothing is uploadedHow to use it
- Drop the original as Image A and the changed version as Image B.
- Under If the sizes differ, scale B to match A or compare the overlap.
- Switch between the Slider, Side by side and Difference views.
- Raise the Threshold to ignore small changes such as JPEG noise.
- Read the stats and press Download diff PNG if needed.
Limits
- Input formats
- JPG, PNG, WebP, GIF, BMP, AVIF, TIFF, SVG
- File size
- 25 MB per file
- Image size
- 50 megapixels per file
- Threshold
- 0–255
Features
- Before/after slider, side-by-side view and difference heatmap
- Counts changed pixels and the percentage that differs
- Box drawn round the area containing every change
- Maximum and mean difference per pixel
- Difference is computed in a web worker
For AI agents: avtools_image_compare
Loading the tool…