Image Comparison (slider, overlay, diff)
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How to use Compare Images
- Choose your file (or drop it onto the page).
- Adjust the options shown.
- Select the action button and wait for it to finish.
- Review the result, then download it.
What to expect
A new file is created. Your original file is never modified.
- Pixel differences are exact colour changes, not a judgement of visual similarity.
- Different sizes are padded; choose an alignment option.
Frequently asked questions
Is my images uploaded anywhere?
No. The images is read and processed by JavaScript in your browser. Only the website's own code and assets are downloaded.
Do I need to create an account?
No. Every tool works without sign-up or login.
Is it safe for confidential documents?
Files are processed locally in your browser and never uploaded. Close the tab or select Clear to release them from memory.