Stuck Pixel Fixer: Fix Stuck Pixels Online for Free

How to fix a stuck pixel

Find the stuck pixel first with the dead pixel test, and note where it is.
Read the flashing light warning and tick the box to unlock the tool.
Press Start fixer box. A small flashing square appears. Drag it with your mouse or finger until it covers the stuck pixel. Use the size slider to make it bigger if you are not sure of the exact spot.
Leave it running for 10-20 minutes and look away from the screen. Press Esc, the × button or Stop to end it.
Run the dead pixel test again. If the pixel is still stuck, repeat for up to an hour, or try Flash whole screen if there are several stuck pixels.

Did it work?

If the fix worked, the pixel shows the same color as its neighbors on every background in the dead pixel test. Many stuck pixels recover within 10-20 minutes; stubborn ones can need several sessions over a few days.

If nothing changes after a few hours in total, the sub-pixel is probably physically damaged or it is actually a dead pixel (black on every color), which software cannot repair. A pixel that comes back but sticks again later is likely to fail for good, so report it while the device is under warranty.

How a stuck pixel fixer works

Each pixel on an LCD or OLED screen is made of red, green and blue sub-pixels. A stuck pixel is one where a sub-pixel stays on (or partly on) instead of following the picture. Flashing red, green, blue, black and white many times a second rapidly switches that sub-pixel on and off. On LCD screens this can loosen liquid crystals that are stuck in one position; on OLED it exercises the pixel circuit. This is the same idea as JScreenFix and other pixel fixer apps, built into the page so there is nothing to install.

The fixer is safe for your screen: it only shows normal colors, just very fast. The risk is to people, not to hardware, which is why the warning above matters.

Common problems and fixes

The pixel is still stuck after 20 minutes

Run it again for 30-60 minutes, and repeat once a day for a few days. Make sure the box really covers the pixel: make it larger to be sure. Switch to the Fast speed if you were on Gentle.

Try the pressure method (with care)

Turn the screen off, wrap a soft cloth around a blunt, rounded object such as a stylus cap, and press very gently on the exact spot. Turn the screen on while still pressing, then release. Pressing too hard can create more dead pixels, so this is at your own risk.

The box will not stay on a phone pixel

Make the box bigger so a small slip does not matter, or use Flash whole screen. Set the screen timeout to a longer value so the phone does not lock while the fixer runs.

Frequently asked questions

Can a stuck pixel be fixed?

Often, yes. Stuck pixels (stuck on red, green, blue or white) can respond to rapid color flashing. Dead pixels that stay black on every color usually cannot be fixed at home.

How long should I run a stuck pixel fixer?

Start with 10-20 minutes. If the pixel is still stuck, try longer sessions of up to an hour and repeat over a few days.

Is the stuck pixel fixer safe for my monitor?

Yes. It only shows ordinary colors, changing quickly. It cannot harm an LCD or OLED panel. Do not look at it if you are sensitive to flashing lights.

Is this the same as JScreenFix?

It works on the same principle: a flashing area of changing colors placed over the stuck pixel. You can drag it anywhere, resize it, or flash the whole screen.

Does it work on phones and OLED screens?

Yes. It works on Android and iPhone browsers and on LCD and OLED screens. Drag the box with your finger. Keep the screen awake while it runs.

Can it fix a dead pixel?

Rarely. A dead pixel usually has a failed transistor and no power. It is still worth one try, since what looks dead is sometimes a sub-pixel stuck off.

Flashing light warning: this page shows rapidly flashing colors that may trigger seizures in people with photosensitive epilepsy. Do not use it if you or anyone nearby may be affected. Stop at once if you feel unwell. See our terms.