Pixel-Perfect Comparison

Screenshot Diff Tool

Compare UI screenshots pixel-by-pixel to detect visual changes. Perfect for QA testing, design reviews, and tracking UI regressions.

Upload Screenshots

Upload two screenshots to compare. Images will be automatically resized if dimensions don't match.

Screenshot 1 (Before)

Click to upload

or drag and drop

image/*
Screenshot 2 (After)

Click to upload

or drag and drop

image/*

Pro Tips

  • • Lower threshold values (0-0.1) detect subtle color differences
  • • Images with different dimensions will be automatically resized to match
  • • Magenta highlights show pixel differences in the diff view
  • • Use overlay mode to see differences in context with the original image
  • • All processing happens in your browser - no server uploads required