Dead Pixel Test
Dead & Stuck Pixel Repair
Drag the fixer over the stuck red, green, or blue dot and leave it running for at least 10 minutes.
Works on stuck pixels (colored dots). Dead pixels (black dots) are hardware failures and cannot be fixed with software.
BEFORE YOU RUN IT
Three things to know.
What it fixes.
Stuck pixels — dots locked on red, green, blue, or white that change color as you cycle test screens. The rapid flash can unstick the sub-pixel transistor.
What it won't fix.
Dead pixels — always black, never lights up no matter what's on screen. Those are a hardware failure. Check your manufacturer's pixel warranty policy.
How long to run it.
10–30 minutes per session. Turn the screen off afterward and check when it cools. Some pixels recover in one run; others need a few tries over a couple of days.
ABOUT THIS TOOL
How a stuck pixel fix actually works.
A stuck pixel is a pixel frozen on a single color — most often red, green, or blue — because its transistor has stopped switching states normally. Unlike a dead pixel, which is permanently dark and almost always a hardware failure, a stuck pixel still has power running through it. That's what makes a stuck pixel repair possible: the sub-pixel transistor can sometimes be coaxed back into working order by rapidly cycling it through thousands of color changes per second.
How the Rapid-Cycling Method Works
The approach is straightforward. A stuck pixel is essentially frozen in one electrical state. Flashing it through rapid color changes creates voltage shifts that can dislodge whatever's keeping the sub-pixel locked. It's completely non-invasive — nothing is installed, nothing touches the hardware, and there's no risk of making the problem worse. Position the fixer directly over the stuck pixel, resize it to cover just that area, and leave it running for at least 10 minutes. Some stuck pixels recover in a single session; others need a few runs over a couple of days. If a pixel shows no change after three or four 30-minute sessions, it's unlikely to respond to software treatment alone.
Dead Pixel Fix vs. Stuck Pixel Fix
It's worth being clear on the distinction. A dead pixel fix in the software sense doesn't really exist — a truly dead pixel is a hardware failure where the transistor no longer receives power, and no tool can reverse that. What this repair tool targets is stuck pixels (colored dots that visibly change as you cycle through test screens) and sometimes hot pixels (always white). If you're not sure which type you have, use the dead pixel test first to confirm before running a repair session.
Works on Any Device or Panel Type
This dead pixel fixer online works across all panel types — IPS, LCD, TN, VA, and QLED monitors. The canvas-based noise cycles every sub-pixel through hundreds of color states per second, which is what gives it a chance of breaking the stuck state. For an OLED dead pixel fix attempt, the same method applies, though truly dead OLED pixels are less likely to recover since each organic light-emitting element is electrically independent rather than backlit.
For a dead pixel fix on iPhone or dead pixel fix on Android, just open this page in your mobile browser — no app download needed. Touch controls make it easy to drag and resize the fixer widget over the problem pixel on any screen size. The tool runs entirely in your browser, collects no data, and is completely free to use.