What is a Dead Pixel Test?

Noticing a small dot on your screen that doesn’t change or light up? That could be a dead pixel. A dead pixel is a tiny spot on an LED, LCD, or OLED screen that remains unresponsive—often visible against certain solid background colors.

How Can the Dead Pixel Test Help?

Our Dead Pixel Test is a quick and effective way to detect dead, stuck, or bright pixels on your screen. Unlike stuck pixels that display a solid color, dead pixels usually appear black and don't light up due to hardware or manufacturing issues.

How to Test Your Screen for Dead Pixels

1. Clean your screen gently using a dry, lint-free cloth to remove dust or smudges.
2. Visit our Dead Pixel Test tool and click “Start.”
3. Scan your display for any pixels that stay static or don’t change color.
4. Click anywhere on the screen to switch between different solid color backgrounds and spot more defective pixels.
5. Press “ESC” or click the X to end the test.

How to Fix Dead or Stuck Pixels

While some dead pixels may be permanent, you can try these methods to fix them:

• Restart your device—sometimes temporary glitches resolve with a reboot.
• Turn off your monitor, gently apply pressure to the area, then turn it back on.
• Use online tools like JScreenFix to revive stuck or unresponsive pixels.

Why Use Our Online Dead Pixel Test?

• Works on All Devices: Whether you're using a smartphone, tablet, laptop, or monitor, our test is compatible with every screen.
• Free and Easy to Use: No tech skills required—just open the tool and start testing.
• No Downloads Needed: 100% online—use it directly in your web browser.
• Compatible with All Brands: Works flawlessly with displays from Samsung, Apple, LG, Dell, HP, and more.

Frequently Asked Questions About Dead Pixels

How do I identify a dead pixel?

Look for small dots that stay black or white and don’t change color, even when the screen background changes.

Is having a dead pixel a big problem?

In most cases, it’s a minor issue, but it can be distracting during gaming, photo editing, or watching videos.

What does a dead pixel look like on the screen?

A dead pixel appears as a tiny black or white dot that doesn’t match the surrounding display, even when colors change.