White Screen Full Screen Online
White Screen – 100% Full Screen Online Tool for Cleaning, Zoom and Focus
Live Preview
Click for Fullscreen
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.
Free White Screen
for Testing, Cleaning & Lighting.
WhiteScrn turns your entire display into a uniform white screen right in your browser. It works on laptops, monitors, phones, tablets and TVs, with no download and no signup. Use this full screen white tool to find dead pixels, spot dust and smudges while cleaning your screen or as a quick light source for video calls and photos. Click Launch White Screen to go fullscreen and press Esc to exit. On desktop, you can also press F11 to hide the browser bars for a true edge-to-edge view.
New to testing a display? Follow our white screen test guide for a step-by-step dead pixel check.
Other Screen Colors
Check for stuck and hot pixels, or use a pure black background.
A soft pink fullscreen for lighting, backgrounds and video.
A warm yellow fullscreen for backgrounds and color tests.
Test for red subpixel defects, or use a red screen for night-friendly viewing.
Free warm white fullscreen for soft, even fill light on video calls and streams.
A fake cracked-screen prank in fullscreen.
Use Cases
What Is a White Screen Used For?
From checking a new monitor to lighting a video call, here are the most common ways people use a fullscreen white display.
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Dead pixel testing
A solid white display makes black dots (dead pixels) easy to spot on new monitors, laptops, phones and TVs, so you can return a faulty panel in time.
Run a white screen test -
Screen cleaning
Dust, fingerprints and smudges stand out on a bright, uniform background. Wipe the screen with it powered off, then turn it back on to check for missed spots.
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Video call lighting
Use a warm white fullscreen as soft, even fill light for Zoom, Teams and streams when your room is dim.
Try Zoom lighting -
Photography and small subjects
A bright screen works as a free, diffuse light source for close-up and product shots. It is no replacement for studio lighting, but it is handy in a pinch.
Use your screen as a light -
Backlight uniformity checks
Look for uneven brightness, color tint or backlight bleed across the panel. The pixel grid overlay helps you scan the display systematically.
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Stuck and hot pixel checks
Switch to black, or cycle red, green and blue, to find pixels that stay lit and to identify which subpixel is affected.
Open the black screen
Show Custom Text on a Color Background
Display your own text on any background color in fullscreen. Choose a background color, text color and font size, type your message, then click Enter Fullscreen. It's handy for signs, notes, countdown reminders, presentations or a distraction-free reading screen.
Want a plain solid color instead? Use the color picker above, or try the black screen, red screen or Zoom lighting pages.