Screen awake timer

Just a moment…

screen on me

Screen tools

Simple tools for the screen in front of you.

Dead pixel test

Check your display for bright or dark dots on solid white, black, red, green and blue screens.

Check your display for bright or dark dots on solid white, black, red, green and blue screens.

End this session?

Leaving this page will stop the timer and release the screen lock.

Start your session

Choose what to display and how long to keep it on.

Display
Duration
Running friend

Settings

Theme
Language

How to use Dead pixel test

Check your display for bright or dark dots on solid white, black, red, green and blue screens.

  1. Select Start fullscreen. The preview does not keep the screen awake.
  2. Switch between white, black, red, green and blue with Previous/Next, the color selector, or the left/right arrow keys while the canvas has focus.
  3. Inspect different parts of the screen for dots that stay bright or dark across colors. This tool does not repair pixels.
  4. With controls hidden, swipe left for the next color or right for the previous color. A short tap shows the controls again.
  5. Hide the controls to see the whole pattern. Tap the screen to restore them, then select Finish to exit.

Inspect each solid color for dots that stay bright, dark or a different color. Use full screen and hide the controls to see more of the display. This is a visual check, not an automatic diagnosis or pixel repair.