Full-Screen White
Turn your entire display into a pure white canvas. Click the screen to enter fullscreen mode. Perfect for display testing, photography lighting, and screen cleaning.
Click anywhere to enter full-screen mode
Press Escape or click to exit
Display Calibration
Check if your monitor shows true white without color casts. Compare different areas of your screen to detect uniformity issues or backlight bleeding.
Photography Lighting
Use your screen as a large, diffused light source. Set brightness to maximum and position subjects close to the display for soft, even illumination.
Dead Pixel Detection
A full-screen white display makes dead or stuck pixels immediately visible as dark spots. Cycle through different white shades for thorough testing.
Screen Cleaning Guide
Dust, fingerprints, and smudges are most visible against a white background. Use this tool to spot imperfections before cleaning your display.
Backlight Test
Check for backlight uniformity across your display. Uneven brightness or light bleed around edges becomes clearly apparent against pure white.
Color Temperature
Compare shades of white to identify your monitor's color temperature bias. If pure white appears warm or cool, your display may need recalibration.