.png){kind=small}
Match thedesign, exactly.
Drop your mockup on the live page. Catch the misaligned padding, the mismatched color, the wrong font size.
Ship once, not three times.
Drag a file, paste from clipboard, or load from URL
Tune opacity, position pixel-by-pixel, and use blend modes to highlight every mismatch
Lock the overlay, click through to page elements, and tweak your CSS in real time
Drag a file, paste from clipboard, or load from URL
Tune opacity, position pixel-by-pixel, and use blend modes to highlight every mismatch
Lock the overlay, click through to page elements, and tweak your CSS in real time
Stop toggling between
design and browser
Overlay the design directly on your page for a pixel‑perfect match.
Catch every mismatch during development, not in QA review — whether human‑coded or AI‑generated.
Drop, Paste, Load
Import from files, clipboard, or URLs. Drop multiple images at once. Supports PNG, JPG, SVG, WebP, and more.
Pixel-Level Control
Arrow keys for 1px moves, Shift+arrows for 10px. Mousewheel opacity, horizontal centering, HiDPI scale, and keyboard shortcuts for fast toggling.
PROLayer rotation
Blend Modes
“Difference” flags every mismatched pixel at a glance. “Multiply”, “Overlay”, and more for color and tone checks.
Lock & Click-Through
Lock the overlay, then click through to inspect the DOM with Chrome DevTools and tweak CSS live — no toggling required.
Multiple Layers
Manage multiple overlays per site, persisted across sessions and synced across tabs. Free plan includes 2 layers per domain.
PROUnlimited layers
Works With Any Stack
MUI, Tailwind, any framework. Device emulation, focus trap, touch support, local files — it just works.
Loved by Developers
& Designers
350,000+ developers
already ship pixel-perfect code.
Your turn.