Pixel Locator — Mark Suspicious Spots on a Labeled Grid
The Pixel Locator turns a vague suspicion into a record you can act on. Sweep solid colors fullscreen, click any spot that looks wrong, and save it with a grid reference — locally, with nothing uploaded.
How It Works
Pick a grid density, start the inspection, and the screen fills with the first solid color. Arrow keys or the on-screen swatches move you through white, black, red, green, blue and 50% gray. Press G or the grid button to overlay labeled columns (A, B, C…) and rows (1, 2, 3…).
Click any suspicious spot and record what you saw: dark spot, bright spot, stuck subpixel, suspicious cluster, or other — plus an optional note such as "visible only on black". Marked spots appear as rings you can click again to edit or delete. Press Esc to leave the surface at any time.
Why Grid References Help
When you contact a seller or manufacturer, "somewhere in the corner" is much weaker evidence than "one bright spot around cell K2, visible on black and blue". Grid references also help you re-test the same location later — for example, to check whether a suspected stuck subpixel changed after running the stuck pixel fixer.
Pair the locator with the dead pixel test guidance on what each color reveals, and finish with the screen check wizard to structure the full inspection.
What It Cannot Tell You
A browser cannot read the physical pixel map of the panel. Grid cells are relative to your browser viewport, and operating-system scaling can shift content by fractions of a pixel. Treat every record as your own observation, not a confirmed hardware defect — a manufacturer makes that call under their own pixel policy, usually with magnification equipment.
Observations are stored only in this browser (localStorage) and never uploaded. Clearing site data or using a private window removes them.
Часто задаваемые вопросы
Does the Pixel Locator detect dead pixels automatically?+
No. It is a marking tool: you look at solid colors, you judge what you see, and the page records where you clicked and what you selected. Automatic detection from a web page is not reliably possible.
How accurate are the grid positions?+
Positions are relative to the browser viewport at the moment you clicked — accurate for re-finding a spot on the same screen and browser, but not a physical panel coordinate. Display scaling and browser zoom can shift them slightly.
Where are my observations stored?+
In your browser localStorage, on your device only. They are never uploaded, and they feed the local Screen Check Scorecard generated by the wizard.
Which color should I use to find stuck pixels?+
Check the spot on several colors: a dead pixel stays dark on every color, a stuck subpixel keeps its own color (for example red on a white field), and dust simply wipes away. Always clean the screen before judging.