Overlay Check – Pixel Perfect Mockup Overlay

Overlay your design mockup on any web page. Unlimited layers, opacity, nudge and lock – free. Check your build pixel by pixel.

Overlay Check puts your design mockup (PNG or JPG from Figma, Sketch, Photoshop, XD) on top of the live web page so you can see exactly where the build differs from the design. FREE – NO LIMITS ON LAYERS • Unlimited mockup layers per page • Drop, paste (Ctrl+V) or choose an image • Opacity slider for each layer • Move with the mouse or nudge with arrow keys (Shift = 10 px) • Exact X / Y position and one-click horizontal centering • Scale for @2x and @3x exports • Lock a layer to click through it and use the page normally • Alt+H hides all layers; Alt+Shift+O opens the panel PRO – ONE-TIME PAYMENT, NO SUBSCRIPTION • Difference mode: mismatched pixels light up • Save layers per page and get them back after reload • Export and import overlays as a file to share with your team PRIVACY Your images never leave your computer. Overlay Check runs only on the tab where you click it (activeTab), stores data locally in your browser and collects no browsing data. Payments are handled by ExtensionPay and Stripe. SINGLE PURPOSE: Overlay design mockup images on a web page to compare them with the built page. PERMISSIONS JUSTIFICATION: - activeTab + scripting: inject the overlay panel only into the tab where the user clicks the extension icon. - storage + unlimitedStorage: save the user's overlay images and settings locally (Pro "save per page"); images can be several MB. DATA USAGE: Does not collect or transmit user data. Payment status via ExtensionPay (extensionpay.com). PRIVACY POLICY URL: https://grafikasevcik.cz/overlay-check-privacy/