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Black Screen | Pure Black Fullscreen for Testing & Focus
A free fullscreen color and monitor testing utility that works directly in your
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About
Black Screen is a lightweight browser-based utility designed for everyday display testing and fullscreen color use. Users can instantly turn their monitor, laptop, phone or tablet into a pure black or solid-color screen without installing any software.The project is useful for finding dead or stuck pixels, checking backlight bleed and screen uniformity, reducing unwanted light from secondary displays, testing OLED screens and creating simple lighting or backgrounds.The main goal is simplicity: open the website, choose a screen color and use it immediately.
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