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Stuck Pixel & Burn-in Fixer

Rapid full-saturation colour noise across the whole screen. It sometimes frees a stuck subpixel by driving it hard through its range. It does nothing at all for a dead one.

This runs rapidly changing colour noise over the whole screen. It flashes hard — do not start it if flashing images are a problem for you.

Press F for fullscreen, Esc to exit.

Monitor & Display Tests

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What the stuck pixel & burn-in fixer shows

A stuck pixel has power but its liquid crystal is not responding. Driving the subpixels rapidly between full on and full off sometimes shifts it back. This is a real effect with a modest success rate — not a repair, and not guaranteed.

A dead pixel receives no power at all. Nothing on this page, or any page, will do anything for it. If a site tells you otherwise it is wrong.

How to use a stuck pixel fixer

Run it fullscreen for twenty minutes to an hour, then check with the dead pixel test. If nothing has changed, running it for another six hours is unlikely to help — the effect either works reasonably quickly or does not work.

Smaller block sizes exercise individual pixels harder. Start around ten pixels and go smaller if nothing happens.

What this test cannot tell you

This flashes rapidly and at high contrast. If flashing images are a problem for you or anyone nearby, do not run it — and it is not worth risking for a single pixel.

Success rates are modest, and the pixel can become stuck again later. Treat it as a free thing worth trying before a warranty claim, not as a repair.

Questions

Does a stuck pixel fixer actually work?

Sometimes, for stuck pixels. Rapidly driving the subpixels can shift a crystal that has frozen. It does nothing for a dead pixel, which has no power reaching it at all, and the effect either works within an hour or does not work.

How long should I run it?

Twenty minutes to an hour, then check. Running it overnight is not more effective and is a lot of hours of flashing on a panel for no benefit.

Is this safe for my screen?

For an LCD, yes. On an OLED, prolonged high-saturation content is exactly the kind of thing that ages emitters, so keep it short — an hour, not a day.

Is the stuck pixel & burn-in fixer free?

Yes — free, with no account, no download and no limit. It is a web page, so it runs on any device with a modern browser.

Do I need to be fullscreen?

For anything involving the whole panel, yes. Press F, or the fullscreen button. On a desktop browser F11 also hides the browser toolbars, which matters for the tests where a bright strip at the top of the screen would affect what you are looking at.