Compare two images visually
Upload two photos, move the comparison slider, tune diff sensitivity to ignore tiny compression shifts, and export a PNG mask that highlights changed pixels. Processing stays in your browser.
Use this tool freeBrowser tool
Image compare diff viewer
Runs locally in your browser. The selected image is not uploaded by this tool.
JPEG, PNG, and WebP are supported by default. Specialized converters restrict the file picker to their required input format.
How to use
Upload two images
Choose the reference image and the changed image.
Compare visually
Move the slider to inspect before and after details.
Tune and export a diff
Adjust sensitivity, review any size mismatch warning, then download a PNG diff image that marks changed pixels.
Features
Interactive compare
Overlay two images with a draggable slider for visual inspection.
Adjustable diff export
Create a PNG mask and tune sensitivity for compression noise, anti-aliasing, or strict pixel review.
Local processing
Images are decoded and compared with browser Canvas APIs without upload.
After this task
After this free tool, open Magic Eraser for the next AI editing workflow.
Continue with Magic EraserSpecifications
| Input formats | JPEG, PNG, WebP |
| Output format | PNG diff mask |
| Processing | Client-side Canvas |
Related Magic Eraser Tools
Common questions
Are my photos uploaded?
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No. The viewer and diff export run locally in your browser.
What happens if image sizes differ?
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The diff export compares the overlapping area using the smaller shared width and height.
Need to fix differences?
Use Magic Eraser to remove unwanted objects, then compare the edited image here.
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