Stuck Pixel Fixer
Place a flashing square over a stuck pixel and leave it running to try to bring the pixel back to normal.
Getting ready…
How It Works
A stuck pixel is a pixel whose red, green or blue part is frozen on. The pixel still gets power; it is just not changing when it should.
The fixer cycles red, green, blue, white and black many times a second. Forcing the pixel to switch over and over can free it. The black background makes the stuck pixel easy to find, and you can drag the square over it or move it one pixel at a time with Shift and the arrow keys.
Leave it running for at least 10 minutes, and up to 20 for a stubborn pixel. Look away while it flashes. Nothing is installed, and it runs entirely in this page.
Interpreting Your Result
If the pixel is gone, run the fixer once more to be sure it stays gone. Some pixels come back and need a second session.
If it looks better but is still visible, run it again for longer. Several sessions over a day or two can work where one does not.
If nothing changes after a few long sessions, the pixel is probably dead or physically damaged. A dead pixel stays black and cannot be fixed this way. Confirm which you have with the dead pixel test, and check your warranty.
Frequently Asked Questions
Is the stuck pixel fixer safe to use?
It is safe for your screen: flashing colors does not harm a panel. It is not safe for people with photosensitive epilepsy, because it flashes rapidly. Do not use it if that could affect you, and look away while it runs.
What causes a stuck pixel?
Each red, green and blue part of a pixel is switched by its own tiny transistor. When one gets stuck on, that color stays lit. It can be there from the factory or appear later, sometimes after pressure on the screen.
How long does it take to fix a stuck pixel?
Often 10 to 20 minutes. Some pixels respond in seconds, some need several sessions, and some never recover because the fault is physical.
Can it fix a dead pixel?
Usually not. A dead pixel gets no power, so it stays black and flashing cannot reach it. The fixer is for stuck pixels, which stay lit in one color.
Does it work on phones and TVs?
Yes, on any screen with a web browser. iPhone browsers cannot go full screen, so there the flashing square works inside the browser window.