LCD Test Online

Perform an LCD test to check screen uniformity, stuck pixels, and color accuracy. No app required.

Start LCD Test

Change Screen Color:

10 Hours Black Screen Video

▶ Watch 10 Hours Black Screen on YouTube
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FAQ

Does this work for all LCDs? Yes, compatible with monitors, laptops, and TVs.

Can I use it for calibration? Yes, color modes help calibrate brightness and contrast.