Dead Pixel / Stuck Pixel Test
Test your screen for dead or stuck pixels using solid colours and flashing patterns.
How to use:
- Click any colour to view it in fullscreen
- Use Browser Fullscreen button for true fullscreen mode (entire screen)
- Look carefully for pixels that don't match the background
- Use Flash Colors to rapidly alternate colours (may help unstick pixels)
- Use Cycle Colors to slowly rotate through all colours
- In fullscreen, click colour buttons to change or click Exit
- Press Escape key to exit fullscreen anytime
What to look for:
- Dead pixel: Always black, even on white background
- Stuck pixel: Shows a fixed colour (red, green, or blue)
- Test in a dark room for best results