What Image Comparer does
Image Comparer the tool shows two images with a slider, side-by-side, overlay or pixel-diff view to spot differences.
- Image Comparer
How do I compare two images?
Image Comparer lets you compare two images — the tool shows two images with a slider, side-by-side, overlay or pixel-diff view to spot differences. It runs in your browser, so your files are never uploaded.
- the tool shows two images with a slider, side-by-side, overlay or pixel-diff view to spot differences
- Fast and free
- No signup or watermark
- 100% client-side
What is
Image Comparer
A tool that the tool shows two images with a slider, side-by-side, overlay or pixel-diff view to spot differences.
Image Tools
Related terms
comparediff
Frequently Asked Questions
Yes.
Image Comparer is free with no signup or watermark.
No.
Everything is processed locally in your browser.
Just a browser.
It works in any modern browser with no install.
Detailed Explanation
How it works
Both images are drawn to canvases and compared with a slider or pixel difference in the browser.
- In-browser processing
Use cases
Check before/after edits, spot changes, or compare compression quality.
- Everyday use
Limitations
Processing runs on your device, so very large files take longer, and results depend on the input.
- Device-bound
Privacy
Everything is processed in your browser; your files are never uploaded to a server.
- 100% local
- No upload