Description

WhiteScrn turns your entire display into a uniform white screen right in your browser. It works on laptops, monitors, phones, tablets and TVs, with no download and no signup. Use this full screen white tool to find dead pixels, spot dust and smudges while cleaning your screen or as a quick light source for video calls and photos. Click Launch White Screen to go fullscreen and press Esc to exit. On desktop, you can also press F11 to hide the browser bars for a true edge-to-edge view.