Full Black Screen
A pure black full-screen canvas for testing and dimming.
Preview: #000000
Full Black Screen
Turn your whole display into a clean, solid black canvas with one click. Press Go full screen and the page fills the monitor, hiding the browser bars, tabs and every distraction. It works on desktop, laptop, tablet and phone browsers that support the Fullscreen API.
What a black screen is useful for
- Sleeping and dark rooms. Use a dark display as a dimmed backdrop when you do not want light spilling into the room.
- Screen testing. Black makes backlight bleed, clouding and stuck bright pixels easy to see on LCD and OLED panels.
- Photography and video. A black background works for product shots, reflections, light painting and green-screen style experiments.
- Presentations and breaks. Blank the screen between slides while the projector stays on.
- Burn-in and image retention. A uniform screen can help some displays recover from temporary retention.
How to use it
- Pick a color: Black, White, Red, Blue or any custom hex such as
#101010. - Press Go full screen.
- Press Esc or click the screen to return.
The preview box above shows exactly what the display will look like, and the custom hex field accepts three or six digit codes with or without the hash sign.
Tips
Let a new LCD warm up for a few minutes before judging uniformity, dim the room, and view the panel straight on. On OLED screens, pure black is the one color where each pixel is fully off, which is why it looks so deep.
Privacy
Everything runs in your browser. Nothing is uploaded and no data is stored.
Frequently Asked Questions
How do I exit the full black screen?
Press the Esc key or click anywhere on the screen. Your browser always lets Esc leave full screen mode, so you can never get stuck.
Does a black screen save battery?
On OLED and AMOLED displays black pixels are switched off, so a black screen uses noticeably less power than a bright one. On classic LCD panels the backlight stays on and the saving is small.
Can I use it to test my monitor for dead pixels?
Yes. A pure black screen makes stuck bright pixels and backlight bleed easy to spot. Switch to white, red and blue with the buttons to check for stuck or dead pixels in other colors.
Why does the page ask for full screen only after a click?
Browsers only allow full screen after a user action such as a click, which prevents sites from taking over your display unexpectedly.