Tool version 1.0.0
Image Difference Viewer
Compares two images to reveal changed pixels, alignment differences and overall similarity.
Quick answer
- What is it?
- Compares two images to reveal changed pixels, alignment differences and overall similarity.
- What does it accept?
- Two supported images, alignment mode and sensitivity. Validate dimensions and decoded pixel limits.
- What does it produce?
- Overlay, swipe view, heat map, changed pixel share and downloadable difference image.
Method
Inside the method
Local workers normalize size when requested, calculate absolute pixel differences and connected change regions.
Inputs
Before you begin
Two supported images, alignment mode and sensitivity. Validate dimensions and decoded pixel limits.
Results
Read the evidence
Overlay, swipe view, heat map, changed pixel share and downloadable difference image.
Advanced
Useful extras
Tolerance controls, edge aware view, region list and transparent alignment guide.
Limits
Known boundaries
Input quality, browser memory, remote server behavior and public API availability can affect a result. The finding describes the supplied material at the time of the test; it does not prove intent or future behavior.
FAQ
Questions about Image Difference Viewer
What does Image Difference Viewer accept?
Two supported images, alignment mode and sensitivity. Validate dimensions and decoded pixel limits.
How is the result produced?
Local workers normalize size when requested, calculate absolute pixel differences and connected change regions.
What will I receive?
Overlay, swipe view, heat map, changed pixel share and downloadable difference image.
Is the input private?
Entirely local.
What are the main limitations?
Results depend on the quality, completeness and public availability of the supplied input. Review the evidence before making a high-impact decision.