Image Comparison
Compare two images side by side with overlay options
Compare two images side by side with overlay options. Key features include Side-by-side comparison and Overlay with opacity slider. Use it for image editing and conversion tasks. All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Encrypted with HTTPSProcessed in your browser
All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Actions:
How to Use
- Upload the first image (original)
- Upload the second image (modified)
- Choose comparison mode (side-by-side, overlay, or diff)
- Analyze the differences
Features
- Side-by-side comparison
- Overlay with opacity slider
- Pixel diff highlighting
- Zoom and pan synchronization
- Swap images button
Frequently Asked Questions
What comparison modes are available?
Three modes: side-by-side (both images next to each other), overlay (one on top with opacity), and diff (highlights pixel differences).
Can I zoom into specific areas?
Yes. Zoom and pan are synchronized between both images for precise comparison.
Do images need to be the same size?
For best results, images should be the same dimensions. The tool can resize for comparison but pixel diff works best with matching sizes.
What image tools are available?
We offer 23 image tools including resize, compress, crop, flip, convert formats, watermark, background removal, color picker, QR code generator, and more — all browser-based.
Are these image tools free to use?
Yes. Every image tool is completely free with no watermarks, no sign-up, no usage limits, and no file size restrictions.
Is my image data private?
All image processing happens entirely in your browser. Your images are never uploaded to any external server, ensuring complete privacy for personal and professional photos.
What image formats are supported?
We support JPG, JPEG, PNG, GIF, BMP, WebP, TIFF, and SVG across our image tools. Output formats vary by tool.
Will compressing images reduce quality?
Our compressor uses smart algorithms to minimize quality loss. At default settings, the difference is imperceptible while file sizes can be reduced by 50-80%.
Privacy & Security
All processing happens entirely in your browser using client-side JavaScript. Your files and text are not uploaded to Tool-web's server.
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