Compare your Figma designs with developer screens. Spot the differences. Fix the pixels.
Try interactive demo
OnePixel is a Figma plugin that helps developers compare their mobile
screens with Figma designs pixel-by-pixel. Here are the key features:
Compare Figma designs with developer screens. Upload your screen and instantly spot visual differences with precision overlay technology.
Align screens with one click using top-center or bottom-center anchors. Fine-tune positioning with arrow keys (1px precision) or drag-and-drop for perfect alignment.
Switch between Normal, Difference, and Multiply modes to highlight discrepancies. The Difference mode makes even the smallest pixel variations instantly visible.
Zoom in up to pixel level with mouse wheel scroll. Pan both screens together using spacebar modifier, or move the dev screen independently. Reset to perfect fit instantly.
Adjust developer screen transparency from 10% to 100% with a smooth slider. Find the perfect balance to compare overlapping elements effectively.
Track exact pixel deviations with a movable coordinate panel. Set custom origin points and monitor positioning changes in real-time for precise adjustments.
OnePixel Plugin compares design and developer screens for mobile viewports
to identify pixel-perfect differences and alignment issues.
To start comparing, select a design screen in your Figma file. The Upload Dev Screen button will become active.
Once enabled, upload a developer screen that was previously exported from Xcode or Android Studio.
Screens are now aligned for comparison. Use plugin controls to adjust opacity, zoom, and identify differences.
