What the tool does, how to run it, and what to expect from the result.
Clean the screen, press Start and click through the colours. On black, look for bright dots: stuck or hot pixels. On white, look for dark dots: dead pixels. Red, green and blue reveal a subpixel stuck on or off. A dot that is black on every colour is dead; one lit in the same colour on every screen is stuck, and sometimes the stuck pixel fixer can revive it.
A quick way to understand who this helps, what it solves, and where it connects next.
Gamers, PC builders and anyone checking a device before a warranty claim.
Using the dead pixel test without installing anything or signing up.
Short answers for the questions people usually have before trying a utility like this.
It depends on the maker’s pixel policy. Many allow a few before a warranty replacement; some premium lines guarantee zero. Test on day one so you are inside the return window.
Dust moves when you wipe the screen and looks the same on every colour; a pixel stays put.
Nearby tools from the catalog that fit the same job or workflow.
Flash colours to try to unstick a pixel
Flash colours to try to unstick a pixel. Free, in your browser.
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Measure your screen’s Hz and see motion at each rate. Free, in your browser.
Monitor test: pixels, gradients, black levels, sharpness
Monitor test: pixels, gradients, black levels, sharpness. Free, in your browser.
Check every key registers
Press every key and watch it light up; dead keys reveal themselves fast.
Check title and description length
Check title and description length, status labels, and a search-style preview locally.
Test mouse buttons, wheel and polling rate
Test mouse buttons, wheel and polling rate. Free, in your browser.
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Full-screen colours and patterns. Clean the screen first so dust is not mistaken for a pixel.
A dot that stays black on every colour is dead. One that stays lit in one colour is stuck and may respond to the stuck pixel fixer.