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Screen Test – Test Your Screen Online

Test your display for dead pixels, stuck pixels, colors, brightness, contrast, and screen uniformity directly in your browser.

Solid Colors · 12 tests

Double-click any swatch to jump straight into full screen.

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Patterns

Preview · press Start for true full screen

Starting from: Black

Keys: ← / → switch · F full screen · Esc exit

How to Test Your Screen

  1. 1. Clean it. Wipe dust so you don’t chase specks.
  2. 2. Go full screen. Press Start, then F for full screen.
  3. 3. Flip colors. Use → / ← or swipe to step through.
  4. 4. Look close. Look closely for pixels that remain a different color or brightness.

White and black can make uneven areas and bright or dark pixels easier to spot. Esc quits any time.

Keys: ← / → switch · F full screen · Esc exit

What is Screen Test?

A screen test displays solid color matrix fields and precision patterns across your entire display viewport. Inspecting each test allows you to immediately spot hardware anomalies, dead or stuck pixels, chromatic vignetting, IPS backlight bleed, and OLED image retention. Zero installation required.

FAQ

Common questions

01How do I test my screen online?

Open the test, switch to fullscreen, and go through the different colors and patterns. Look for pixels, uneven areas, brightness problems, and other visible issues.

02What does a screen test check for?

It can help you check for visible pixel defects, unevenness, color or brightness problems, banding, and other display issues.

03Can I test my monitor without downloading anything?

Yes. Display Inspect runs the test directly in your browser, so there is nothing to install.

04Can I use this screen test on a laptop or phone?

Yes. You can use it on devices with a modern web browser. Touch-specific checks should be run on the touchscreen itself.

05How do I test a new monitor for problems?

Run the test fullscreen and check solid colors, black, white, grayscale, and motion patterns. Pay particular attention to dead pixels, backlight bleed, uniformity, and visible banding.

06Can an online screen test find every hardware problem?

No. Browser tests are visual checks and cannot measure every physical property of a display.