Brightness 100%

White Screen background

px
×
px
#FFFFFF
Custom Color
Opens one color window per detected screen. Drag & fullscreen each.

Screen Testing Tools

Auto Color Cycle

Rapidly cycle through colors to help fix stuck pixels. Run for 20–30 minutes for best results.

OLED Burn-in Test

Display a moving pattern to detect and reduce OLED burn-in artifacts on your screen.

Gradient Smoothness Test

Display smooth gradients to check for color banding and bit-depth issues on your monitor.

Checkerboard Pattern Test

Display pixel-level checkerboard patterns to test monitor sharpness and pixel response.

Pixel Response Time Test

Flash rapid black/white transitions to evaluate pixel response time and ghosting.

Viewing Angle Test

Display color bands to help evaluate your monitor's viewing angle consistency.

Gray Uniformity Test

Display 50% gray to reveal backlight hotspots, clouding, and brightness non-uniformity.

Color Accuracy Checker

Display reference color swatches to compare against known standards for calibration checks.

Timer Mode

Set a timer for fullscreen display. Useful for timed screen tests and ambient lighting sessions.

Multi-Monitor Detection

Detect connected displays and open fullscreen color on all screens simultaneously.

Drag each window to a different monitor, then click Go Fullscreen inside it.

About White Screen

A white screen is one of the most versatile tools for monitor testing and everyday productivity. By filling your entire display with pure white light, you can quickly spot dead pixels — those tiny dark dots that fail to illuminate. Dead pixels are permanent hardware defects where a pixel's transistor has failed, leaving it permanently off.\n\nBeyond pixel testing, a full-screen white display serves as an excellent improvised light source. Content creators on Zoom, Google Meet, or Microsoft Teams use white screens to boost facial lighting when a ring light isn't available. Photographers use white screen displays as softbox alternatives for product shots, while videographers employ them as fill lights for close-up work.\n\nFor screen cleaning, a white background makes dust, fingerprints, and smudges highly visible, letting you clean your monitor thoroughly without missing any spots. Simply display the white screen, turn off overhead lights, and wipe with a microfiber cloth using gentle circular motions.\n\nWhite screens also support focus and productivity. Many users display a full white screen during deep work sessions to minimize visual distractions from desktop icons, wallpapers, and notifications. The clean, uniform surface helps maintain concentration during reading, writing, or studying.

Frequently Asked Questions – White Screen

Display this white screen in fullscreen mode and carefully scan every area of your monitor. Dead pixels will appear as tiny dark (black) dots that don't light up. Check systematically by dividing your screen into quadrants.

Yes! Open the white screen fullscreen on a second monitor or tablet facing you. It provides soft, even illumination similar to a ring light. Adjust brightness to control intensity.

Display the white screen, dim room lights, then gently wipe with a dry microfiber cloth in circular motions. The white background reveals all dust and smudges clearly.

Choose the resolution matching your monitor: 1080p for Full HD, 1440p for 2K, 2160p for 4K, or 4320p for 8K displays.

A white screen displays pure #FFFFFF at full brightness to test pixels. A brightness test varies intensity levels to check backlight uniformity and gradient response.