"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
White Screen Full Screen Online
White Screen – 100% Full Screen Online Tool for Cleaning, Zoom and Focus
Live Preview
Click for Fullscreen
Current:White#FFFFFF
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.
White Screen.
Fullscreen Background Test Tool.
WhiteScrn.com is a free white screen test tool that turns your entire display into a uniform bright white Screen, full-screen white surface — instantly, right in your browser, with no download or signup required. Its designed to do two things really well: dead pixel testing and screen cleaning. Run your screen white and defects that normally hide in plain sight suddenly arent hiding anymore. Dead pixels show up as tiny black dots that never light up. Stuck ones lock onto a single color — usually red, green or blue — and just sit there no matter whats on screen. Then there are hot pixels, which do the opposite: they stay bright screen light online when everything around them should have gone dark. This is basically why anyone buying a new monitor, laptop, phone or TV runs a white screen check first.
Its the quickest way to know if there is a problem before its too late to return the thing. As a bonus, that same flat white glow is brutal on dust, fingerprints and the fine scratches you would otherwise never notice — they all stand out clearly once there is nothing else on the screen to distract from them. So you can wipe your screen clean without missing a spot — many people run the white screen tool right after cleaning as a quick screen cleaner check to confirm a spotless finish. Whether you are doing a monitor test, a laptop screen test or a phone screen test, WhiteScrn.com works instantly on any device, with no installation needed, making it a simple go-to online white screen test for both pixel checks and everyday screen cleaning.
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
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How White Screen Full Screen Tool Works?
Discover WhiteScreen free, browser-based professional Full Screen display Testing tools to thoroughly test your monitor or TV. Adjust and verify brightness, contrast, sharpness, color accuracy, dead/stuck pixels, backlight bleed, motion clarity, response time and refresh rate – no downloads or installation required. Perfect for gamers, designers and anyone ensuring optimal display performance on any device.
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Settings
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Ready to Launch? Start Full Screen.
The White Screen Online instantly transforms any device display—be it a laptop, smartphone, tablet, monitor or TV—into a pure, uniform white canvas filling the entire screen. Full Screen Test delivers a solid, distraction-free white screen for light background that can be activated with a single click or Fullscreen toggle like F11.