Ready when you are
Local onlyClean your screen, then inspect each full-screen color.
▣5 solid colorsBlack · White · Red · Green · Blue
1 Clean the screen2 Dim reflections3 Inspect every corner
Tap anywhere to advance · Esc to exit
Device check
Dead Pixel & Screen Test
Fill your display with solid colors to make dead, stuck or unusually bright pixels easier to see.
✓ Instant result✓ No sign-up✓ Runs in your browser
01
How to use this test
- Clean dust and smudges from the display.
- Start the full-screen color sequence.
- Inspect every area and tap to move through each color.
02
If something looks wrong
- A speck that moves when wiped is dust, not a dead pixel.
- View the screen straight on and dim harsh room reflections.
- A black dot on every color may be dead; a fixed bright color may be stuck.
Quick answers
Good to know.
Can this repair a dead pixel?+
No. This test helps you find pixel defects; it does not repair the display.
What is the difference between dead and stuck pixels?+
A dead pixel stays dark, while a stuck subpixel often remains fixed on red, green, blue or another bright color.