Compare two images pixel-by-pixel. Multiple comparison modes: side-by-side, overlay, difference highlighting, onion skin, and slider. Perfect for visual regression testing.
Compare two images and highlight the differences between them. Upload a before and after version, and the tool overlays a diff visualization showing exactly what changed. Useful for QA, regression testing, or verifying design changes.
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Resize and scale images with smart aspect ratio control. Supports custom dimensions, percentage scaling, social media presets, and batch resizing while maintaining image quality.
Create pixelated effects with square, circle, diamond, or hexagon shapes. Features presets for retro gaming, mosaic art, and privacy blur effects.
Crop and trim images with precision visual selection. Features aspect ratio presets (1:1, 16:9, 4:3), free-form cropping, grid overlays, and pixel-perfect adjustments for professional results.
A visual regression test failed and you need to see exactly which pixels changed between two screenshots.
Input
baseline.png vs current.png
Result
0.7% pixels differ, highlighted cluster around the moved button
A pixel-level diff with a tolerance threshold isolates real changes from noise and visualises them, so a regression is localised in seconds instead of by squinting at two tabs. The percentage gives a pass/fail signal for CI-style checks.
Compare two images and highlight the differences between them. Upload a before and after version, and the tool overlays a diff visualization showing exactly what changed. Useful for QA, regression testing, or verifying design changes.
Compare screenshots before and after code changes to catch unintended visual differences.
Verify that a design revision changed only what was intended.
See exactly what changed between two versions of an edited photo.
For accurate pixel comparison, yes. If sizes differ, the tool may resize one to match, but results are best with identically sized images.
It sets how much a pixel must change before it is flagged as different. Higher sensitivity catches subtle changes; lower sensitivity ignores minor variations.
Images are decoded, edited, and exported entirely inside this browser tab. No originals, exports, or metadata are uploaded.