Black Screen
Open a full-screen black page to check backlight bleed or rest your screen.
Fill your screen with pure black: check backlight bleed and glow, hide the screen while something plays, or rest your eyes. On OLED screens black pixels are switched off.
Press Esc or click to close.
Continue your work
- White Screen — Open a white screen instead.
- Screen Test — Run more display tests.
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Clear instructions
Find steps, examples and limitations below.
Use online
Open the tool in a supported web browser.
Free to use
No sign-up required. Tool-specific limits may apply.
How to use the Black Screen
Open a full-screen black page to check backlight bleed or rest your screen.
- 1 Pick black or another dark color.
- 2 Click Open full screen.
- 3 Press Esc or click to close it.
Example and practical tips
In a dark room, open the black screen at full brightness to check a new monitor for backlight bleed at the corners.
Frequently asked questions
Does a black screen save power?
On OLED screens, yes, because black pixels are off. On LCD screens the backlight stays on.
Is this the same as turning the screen off?
No. The screen stays on and the computer stays awake.
Report an issue
Something broken or not quite right? Tell us and we will look into it.