The stuck pixel fixer runs a free color-cycling session in your browser over a single colored or bright dot that may be stuck on. It works on LCD and OLED screens with no download or account. It cannot revive a confirmed dead, black pixel, and it will not fix burn-in, backlight bleed, lines, cracks, or pressure marks.
How to use the stuck pixel fixer
Classify the dot first
If you are not sure the dot is stuck, run the Pixel Test. Use the fixer only for a colored or bright point that stays lit on solid colors.
Open the fixer and pick a repair area
Start the tool, then choose Precision Window on a desktop to drag a small box over the exact pixel, or Fullscreen on a phone or when the dot is hard to isolate.
Choose intensity and length
Standard at 30 minutes suits most attempts. Use Quick at 10 minutes for a first pass, and extend only if the dot shows partial change.
Run the session and look away
Keep the room lit, do not stare at the flashing pattern, and keep the device cool while it runs.
Retest on solid colors
Exit and check the spot on black, white, red, green, and blue. Use the Pixel Test if you want guided full-screen colors.
Repeat once, or stop
If it improved, run one more short session. If nothing changed after about an hour of total run time, stop and document the result.
Not sure what the dot is? Run the Pixel Test first, then run a session only if it still looks like a stuck or hot pixel.
How long to run it, and when to stop
Start with a 10-minute quick pass or a 30-minute standard run instead of leaving the tool going indefinitely. Retest after each session, and extend toward an hour only if the dot is dimming or flickering back toward normal. Stuck pixels that respond usually change within the first 30 to 60 minutes of cycling; a colored dot that has not moved after roughly an hour of total run time rarely recovers, and longer runs mainly add heat. Treat overnight sessions as a last pass, not a default.
Retest results and when to stop
Swipe sideways to compare columns.Scroll table to view all columns.
| Retest result | What it suggests | What to do |
|---|---|---|
| The dot now changes normally | The stuck state may have cleared. | Stop and check it again during normal use. |
| The dot is dimmer, intermittent, or partly changed | The fixer may be having some effect. | Run one more short session, then retest. |
| The dot stays colored or bright after repeated attempts | The recovery response is weak. | Stop the planned attempts and document the result. |
| The dot now stays black | It no longer fits stuck-pixel behavior. | Run the Pixel Test and document it as a possible dead pixel. |
| The screen gets hot, the device becomes unstable, or flashing causes discomfort | The attempt is no longer worth continuing. | Stop immediately. |
| The issue spreads into a line, cluster, haze, or shadow | It is probably not one stuck pixel. | Use the right diagnostic page or contact support. |
Is your dot a good candidate?
Match your symptom before you try the fixer
Swipe sideways to compare columns.Scroll table to view all columns.
| What you see | Try the fixer? | What it likely is and your next step |
|---|---|---|
| A red, green, blue, cyan, magenta, yellow, or white dot that stays lit | Yes | Stuck pixel or subpixel. Run a bounded session, then retest. |
| A bright white dot that stands out on a black screen | Maybe | Hot or bright pixel. Try one short session, then check the manufacturer pixel policy. |
| A dot visible only on one test color | Maybe | One subpixel may be affected. Classify it with the Pixel Test first. |
| A tiny black dot on white or bright screens | Usually no | Dead or dark pixel. Run the Pixel Test and document it. |
| A faint logo, keyboard, or taskbar shadow | No | Burn-in or image retention. Use the Burn-In Test or Burn-In Fixer. |
| Glow or haze near the edges or corners | No | Backlight bleed or IPS glow. Use the Backlight Bleed Test. |
| A line, cluster, cloudy patch, or crack | No | Panel, pressure, or physical damage. Document it before support or resale. |
| An issue that appears only in one app, video, cable, or input | No | Source or rendering artifact. Retest with another source. |
If it is not a single stuck pixel: use the Burn-In Test or Burn-In Fixer for a retained image, the Backlight Bleed Test for edge glow, or document pressure damage before support or resale.
How to confirm it's really a stuck pixel
Confirm the dot before you cycle it. With the screen off, clean it using the manufacturer-recommended method, because dust, a surface chip, a droplet, or a screen-protector flaw can imitate a bad pixel, and never scrape or press the point. Then, at the display's native resolution and moderate brightness, check the same physical spot on black, white, red, green, blue, and gray. A point that stays in one location while its color behavior changes against those screens is more consistent with a panel-side defect.
Then take a screenshot and open it on a second known-good display. If the dot appears in the screenshot, the cause is likely software, a browser extension, an overlay, the graphics driver, a cable, or the source device rather than the panel, and color cycling will not help. If the dot is missing from the screenshot but still visible on the original screen, the evidence points to the display itself, and a short, bounded fixer session is reasonable.
Before you run it
Clean the screen
Dust, a smudge, or a mark on the glass can look like a bad pixel.
Classify the dot
Use the Pixel Test if you are unsure whether it is dead, stuck, hot, burn-in, backlight bleed, a pressure mark, a line, or a source artifact.
Use moderate brightness
Very high brightness and long sessions add heat, especially on OLED, AMOLED, phones, laptops, and battery-powered devices.
Do not press the screen
Pressure can damage some panels. Do not rub or press unless official device guidance says to.
Watch for flashing discomfort
Do not stare at the pattern, keep the room lit, and stop immediately for discomfort, heat, or device instability.
Methods to avoid
Skip the old pressure and heat tricks. Do not massage, rub, tap, squeeze, twist, or press the pixel, and do not apply heat, a hair dryer, a heated cloth, ice, suction, or sharp tools. These can damage panel layers, spread liquid-crystal disturbances, break touch or anti-glare coatings, leave permanent pressure marks, and complicate a warranty claim. Safe steps that do not physically stress the panel, such as power cycling, restarting, checking for updates, changing the input or cable, and testing another device, are worth trying first. Use a built-in panel-care or pixel-refresh routine only on a compatible OLED device and only as the manufacturer directs.
Stuck, dead, and hot pixels at a glance
What changes by display type
How the fixer applies by display type
Swipe sideways to compare columns.Scroll table to view all columns.
| Display type | What to watch for | How to test it |
|---|---|---|
| LCD monitor or laptop | Backlight bleed, pressure marks, and row or column faults look worst on solid colors but are not stuck pixels. | Isolate the panel from the source: swap the cable, port, or computer, or open a built-in menu. |
| OLED or AMOLED phone, tablet, TV, or laptop | Image-shaped shadows are usually retention or burn-in, and heat and long bright sessions carry more risk here. | Keep sessions short and brightness moderate; use built-in panel maintenance only when the maker documents it for your model. |
| TV | Browser scaling can create patterns that look like pixel defects from across the room. | Compare multiple inputs, the built-in menu, and the manufacturer's self-diagnostic screens. |
If the pixel doesn't change, document it
If the dot does not change after reasonable attempts, document the issue for warranty or support. Take photos on black, white, red, green, and blue screens, note whether it changed after the fixer, record the device model, and check the manufacturer pixel policy or return window before you compare repair and replacement options. When you photograph a tiny defect, include one wide shot of the whole display and one close shot of its exact location, and avoid digital zoom, which can invent artifacts that mislead support.
Stuck pixel fixer vs other tools
Here is how the main browser and desktop stuck-pixel tools compare. We keep this current; last checked July 2026.
Stuck pixel repair tools compared
Swipe sideways to compare columns.Scroll table to view all columns.
| Tool | How it runs | Targeting and safety | Best for |
|---|---|---|---|
| ScreenDetect Stuck Pixel Fixer | Free, in your browser, no install (LCD and OLED). | Movable precision window or fullscreen, with a photosensitivity warning, bounded sessions, and clear stop rules. | A cautious attempt after you confirm the dot is stuck or hot, with a retest and warranty handoff. |
| JScreenFix | Free, in your browser, no install (LCD and OLED). | Drag the fixer over the dot or run fullscreen; run for at least 10 minutes, up to about an hour. | A fast browser attempt when you already know the pixel is stuck. |
| OnlineMicTest Stuck Pixel Fixer | Free, in your browser, no install. | Drag a square over the pixel; run about 10 minutes and retry up to 60. | A simple, no-frills browser attempt. |
| PixelHealer or UDPixel | Free Windows download, including a portable version. | Resizable flashing window with adjustable colors and interval; runs for a set time. | Windows users who want offline controls; both market dead, stuck, and hot pixels broadly. |
| YouTube flashing-color videos | Free video playback in a browser or app. | Flashes the whole frame rather than one point, with no session or pixel-specific safety logic. | Displays where you can only open a video player, with less precise targeting. |
Sources checked
We checked official display, device, accessibility, and manufacturer support pages to keep this stuck-pixel guidance aligned with current public information.
- Dell Display Pixel Guidelines · Dell SupportBright and dark subpixel definitions, built-in diagnostics, and model-specific pixel policy guidance. Checked June 3, 2026.
- HP Pixel Policy · HP SupportPixel and subpixel defect definitions for HP and Compaq LCD monitors, TouchSmart PCs, and All-in-One PCs. Checked June 3, 2026.
- Lenovo defective pixel policy for monitors and All-in-One desktops · Lenovo SupportDefective pixel thresholds and support-contact logic by product class. Checked June 3, 2026.
- BenQ LCD Monitor Pixel Policy · BenQ SupportBright, hot, dark, and colored stuck subpixel categories. Checked June 3, 2026.
- ASUS Zero Bright Dot · ASUS ROG SupportBright dot and dark dot definitions and Zero Bright Dot coverage limits for select LCD displays. Checked June 3, 2026.
- Acer defective or stuck pixels · Acer Community Knowledge BaseBright and dark subpixel categories, warranty thresholds, and region or product caveats. Checked June 3, 2026.
- LG TV pixel outage or colored dots on screen · LG SupportPixel outage context and caution that some stuck-pixel suggestions can damage devices if done incorrectly. Checked June 3, 2026.
- W3C WCAG: Three Flashes or Below Threshold · W3C Web Accessibility InitiativeFlashing-content risk and threshold guidance for photosensitive seizure safety. Checked June 3, 2026.
Stuck Pixel Fixer FAQ
Is the stuck pixel fixer free?
Yes. It runs free in your browser with no download, account, or sign-up.
Can a stuck pixel fixer actually fix a stuck pixel?
It may help some stuck or hot pixels, but there is no guaranteed success rate. Diagnose first, use a short controlled session, retest, and stop after reasonable attempts if nothing changes.
How long should I run the stuck pixel fixer?
Start with about 10 minutes and retest. Extend to 30 to 60 minutes only if the dot is a plausible stuck-pixel candidate and the device stays cool. Stuck pixels that respond usually do so within the first hour.
How do I know if a pixel is stuck or dead?
A stuck pixel usually stays one color or bright white. A dead pixel usually stays black on bright or color screens. Run the Pixel Test first if you are unsure.
Can dead pixels be fixed?
A dead pixel usually appears black because it is not lighting correctly. This fixer is not for confirmed dead pixels.
Can the fixer repair a bright or hot pixel?
Maybe. A bright or hot-looking pixel can behave like a stuck-on subpixel, so one short session is reasonable. It may also fall under a manufacturer pixel policy, so document it if it does not change.
Is it safe to run a stuck pixel fixer?
Use it cautiously. Do not use it if flashing lights may affect you, and stop for discomfort, heat, or device instability.
When should I stop using the fixer?
Stop if the pixel does not change after repeated attempts, turns black, spreads into a line or cluster, or the screen gets hot.
Does flashing colors work on OLED screens?
It may help some stuck-looking dots, but OLED and AMOLED screens need more caution around heat, brightness, and long sessions.
Can the fixer repair burn-in or backlight bleed?
No. Burn-in, image retention, and backlight bleed are not single stuck pixels. Use the Burn-In Test, Burn-In Fixer, or Backlight Bleed Test instead.
Should I run a pixel test first?
Yes, if the dot is unclassified. The Pixel Test is the better place to identify whether the issue is dead, stuck, hot, or something else.
What should I do before warranty or repair support?
Save photos on multiple color screens, note whether the pixel changed after the fixer, record the device model, and check the manufacturer pixel policy.
Can a stuck pixel spread?
A single stuck pixel does not physically infect its neighbors. If more dots appear, that usually reflects a broader panel fault or normal aging rather than the original pixel spreading, so record any changes and recheck with the Pixel Test.
Why won't my stuck pixel go away?
If a dot will not clear after bounded color-cycling sessions, it may be a dead (black) pixel, burn-in, backlight bleed, a pressure mark, or panel damage rather than a true stuck pixel, and color cycling cannot fix those. Reclassify it with the Pixel Test and document it for warranty if it stays.