Dead Pixel Test

How to Use

1. Click any color button below. Your screen will go fullscreen and fill with that solid color.
2. Carefully inspect the screen for any dots that differ from the background — those are dead or stuck pixels.
3. Press Esc or click the screen to exit. Press Space to switch to the next color.
4. Click "Auto Cycle" to automatically display all colors (3 seconds each).
5. For best results, test in a dark room.