Free tests

Dead pixel test

Start the test and look closely at each colour. A dot that stays black, white or one colour is a dead or stuck pixel.

Click or press Space for the next colour, Esc to leave.

The test runs entirely in your browser; nothing is sent.

Clean screen, clean aim: HEJİR's crosshair can sit anywhere on the screen, so a bad pixel never has to be in the middle.Try HEJİR free
What is the difference between a dead and a stuck pixel?

A dead pixel stays black on every colour; a stuck one stays one colour (red, green or blue). Stuck pixels sometimes recover, dead ones rarely do.

Is a dead pixel covered by the warranty?

It depends on the maker's pixel policy; many allow a few. Note the position and check your monitor's warranty terms.

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