"I use the pink and white screens as fill lights for every product shoot. It replaced my portable LED panel — free, instant, and the soft diffuse light is honestly better for small products."
Sarah M.
Product Photographer
Black Screen Full Screen Online
Black Screen – 100% Full Screen Online Tool for OLED Testing, Dead Pixel Check and Eye Comfort
Live Preview
Click for Fullscreen
Current:Black#000000
Pixel Grid
Overlay a grid with auto-contrast color
Choose Your Color
White
Black
Red
Green
Blue
Yellow
Orange
Pink
Purple
Cyan
Gray
Zoom Light
Custom
Perfect for monitor testing, photography lighting, and presentations.
Black Screen.
OLED & Dead Pixel Test Tool.
The Black Screen tool is the go-to solution for OLED and AMOLED display testing. A pure black background makes stuck or bright pixels immediately visible — something impossible to see on a white or colored screen. WhiteScrn.com instantly fills your entire display with a solid, uniform black surface.
A fully black screen also helps save battery life on OLED devices, since black pixels consume virtually no power. Use it during breaks, presentations, or any time you need to blank your display cleanly. It also reveals fingerprints and dust against the dark surface, making screen cleaning quick and precise.
Turn your Monitor display to full black screen in single click.
Use Pink full-screen display for adding a vibrant pop of color to your videos.
Using a yellow full-screen display will make your audience feel welcome and comfortable.
Use Red Screen to experiment with color filters and effects in photography and video.
Use warm white full-screen display as a soft light source for video calls and streams.
Prank your friends with a hyper-realistic fake cracked screen effect in fullscreen.
User Reviews
Trusted by thousands of users worldwide
Photographers, technicians, designers, and everyday users who found a smarter way to use their screens.
"The black screen dead pixel test is the first thing I run on every new monitor we receive. Found a defective panel on day one before it went to a user. WhiteScrn saves us returns every month."
James K.
IT Support Technician
"Zoom Lighting mode is a game changer. My webcam quality went from grainy to clean in 10 seconds with zero extra hardware. My clients actually asked if I got a new camera."
Priya R.
Remote UX Designer
"I test monitors professionally. Having all solid colors — red, green, blue, white, black — available instantly in one tool with a proper fullscreen API is exactly what I needed. No more janky full-tab workarounds."
Tom W.
Display Reviewer
"The broken screen prank is hilarious. I set it up on my boyfriend's laptop before he sat down and his reaction was priceless. The cracks look completely real — he genuinely panicked for 5 seconds."
Lena B.
Content Creator
"Red screen for stargazing sessions is something I never knew I needed. Checking star charts at night without killing my night vision. Simple idea, huge practical value."
Carlos D.
Astronomy Hobbyist
"The pixel grid overlay is a surprisingly useful addition. I use it with the white screen to check monitor uniformity and spot backlight issues on client displays before colour-grading sessions."
Mei L.
Graphic Designer
"Testing device screens is part of my daily job. WhiteScrn loads instantly, works on every device I throw at it, and the download feature lets me save reference images for bug reports."
Ahmed S.
Mobile QA Engineer
"I use the pink and white screens as fill lights for every product shoot. It replaced my portable LED panel — free, instant, and the soft diffuse light is honestly better for small products."
Sarah M.
Product Photographer
"The black screen dead pixel test is the first thing I run on every new monitor we receive. Found a defective panel on day one before it went to a user. WhiteScrn saves us returns every month."
James K.
IT Support Technician
"Zoom Lighting mode is a game changer. My webcam quality went from grainy to clean in 10 seconds with zero extra hardware. My clients actually asked if I got a new camera."
Priya R.
Remote UX Designer
"I test monitors professionally. Having all solid colors — red, green, blue, white, black — available instantly in one tool with a proper fullscreen API is exactly what I needed. No more janky full-tab workarounds."
Tom W.
Display Reviewer
"The broken screen prank is hilarious. I set it up on my boyfriend's laptop before he sat down and his reaction was priceless. The cracks look completely real — he genuinely panicked for 5 seconds."
Lena B.
Content Creator
"Red screen for stargazing sessions is something I never knew I needed. Checking star charts at night without killing my night vision. Simple idea, huge practical value."
Carlos D.
Astronomy Hobbyist
"The pixel grid overlay is a surprisingly useful addition. I use it with the white screen to check monitor uniformity and spot backlight issues on client displays before colour-grading sessions."
Mei L.
Graphic Designer
"Testing device screens is part of my daily job. WhiteScrn loads instantly, works on every device I throw at it, and the download feature lets me save reference images for bug reports."
Ahmed S.
Mobile QA Engineer
Black Screen Tool
How Black Screen Full Screen Tool Works?
The Black Screen tool fills your entire display with a pure, uniform black surface instantly — no downloads or installation needed. It's the most reliable way to identify dead pixels, stuck pixels, and backlight bleed on OLED, AMOLED, and LCD screens. A completely black display forces any defective pixel emitting light to stand out immediately against the dark background, making issues impossible to miss.
Preview
Sample Text
Settings
12px72px
Ready to Test? Go Full Black Screen.
The Black Screen Online instantly fills your entire display with a pure, uniform black surface — perfect for OLED dead pixel detection, backlight bleed testing, and battery saving on AMOLED devices. Activate with a single click or Fullscreen toggle like F11.