Free Screen Test & Dead Pixel Checker Online
Check your screen for dead pixels, color problems, and light bleed in just 15 seconds
Use Screen Test Pro to check for dead pixels, stuck pixels, display bleed, and color issues on any screen. Works instantly in your browser – great for monitor testing, phone screens, and more.
If your device cannot enter fullscreen mode (like some mobile browsers), you can use the video below in fullscreen for testing
Running a screen test helps catch display problems early, improves viewing quality, and extends the life of your monitor or device.
It checks for dead and stuck pixels, backlight bleeding, color accuracy, and screen uniformity. Works for LCD, LED, OLED, and more.
The full screen check takes about 15 seconds.
No – this screen test runs entirely in your browser, with no software download required.
Yes – the tool uses basic color screens and is safe for all displays.
It helps identify display issues but does not replace full hardware calibration.
Stuck pixels may be fixed by software or gentle tapping. Dead pixels often require screen replacement.
Yes – it works on monitors, laptops, tablets, phones, and TVs using LCD, LED, OLED, IPS, TN, or VA panels.