White Screen Checker

A free website that turns any display into a full-screen solid color with a single click. The main tool shows a plain white screen. People use it as a soft light for video calls and photos, for checking a monitor for dead pixels, for cleaning a screen, or for tracing drawings on a tablet. Brightness and warmth controls let you set the light exactly, and settings are saved in your browser for your next visit.

The site also offers black, red, green, blue, yellow, orange, pink and purple screens, plus a picker for any custom color. Each screen opens in full screen and keeps the display awake while it is showing, so the device does not dim or lock.

There is a set of original prank screens: a hacker terminal, a cracked display, a blue error screen, and fake Windows 10 and Windows 11 update screens. Utility pages include a full-screen stopwatch, a countdown timer and a white noise generator with a matching static display.

iWhiteScreen works in any modern browser on phones, tablets and computers. There is nothing to install and no account to create. The site is available in 11 languages: English, Spanish, Portuguese, German, French, Italian, Turkish, Polish, Ukrainian, Japanese and Korean. Pages load quickly on slow connections.