Dead Pixel Tester
Test colors
Test colors for every monitor
You can change the color with a mouse click or the space bar. Please don't forget to clean the screen for better visibility.
How do I identify a dead pixel on my screen?
A dead pixel on a digital screen can be an annoying defect. Luckily, spotting a dead pixel is easy. All you need is a pure black or white screen. If you see a pixel that is different from the others and stays solidly black or white, you've probably found a dead pixel.
One pixel dead
A green pixel stays on
One pixel dead
One pixel dead
One pixel dead
What is a dead pixel?
A dead pixel, also known as a defective pixel, is a pixel on a digital screen that remains either permanently black or white or whose color doesn't change correctly. This can occur due to a defect in the manufacturing process or normal wear and tear.
How do I fix a dead pixel on my screen?
A dead pixel on your screen can be an annoying problem, but there are some steps you can take to fix it. One of the easiest steps is to simply turn the device off and on again. If none of these methods work, you may need to consult a professional, or you may even need to have the device repaired or replaced.