White Screen

A full-screen pure white (and other solid colors) — for lighting, dead pixel checks and screen cleaning, right in the browser.

Fill your whole screen with a pure, solid color in one click — white, black, red, green, blue and more. Handy as a soft light source, a background to hunt for dead or stuck pixels, a plain backdrop for photos and video, or to check screen cleaning and backlight bleed. No install, runs right in the browser.

Tip: click the screen or use the arrow keys to switch color, and press ESC to exit. Use a comfortable brightness; the appearance can vary with your display and ambient light.

Or pick a color

Black Screen

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About This Content

Free online white screen test that fills your display with pure, full-screen white in a single click. Use it as a soft, even white light source when you need a quick fill light or softbox stand-in for photos and video calls. Switch to solid black, red, green or blue to hunt for dead or stuck pixels, spot dust and smudges while cleaning your monitor, and check for backlight bleed and uneven brightness on LCD panels. It also makes a clean solid-color backdrop for product shots or a harmless blank-screen prank.

Click anywhere or use the arrow keys to cycle through 9 solid colors — white, black, red, green, blue and more. Everything runs right in the browser, so there is nothing to download and no install: it works on any laptop, PC, tablet or phone, in any language. Press F11 (or use the button) for true full screen with no borders or bars. Perfect before buying a used display, cleaning your screen, or setting up lighting.