LightScreen

LightScreen is a free online tool that turns any display into a flashlight, ambient light, or solid-color screen. It allows users to fill a monitor, laptop, or phone with any color at adjustable brightness, making it useful for various purposes such as reading light, screen flashlight, or red light for stargazing. The tool includes extra modes like breathing, RGB cycle, traffic-light blink, and Zoom lighting, along with utilities like a digital clock and a Linux terminal simulator.

Pros of LightScreen include that it requires no download or sign-up, making it easily accessible, and it works on phones, laptops, and monitors. However, a con is that it requires a screen to provide the light, which may limit its use in certain situations.

LightScreen offers various features including adjustable brightness for solid colors, multiple modes such as breathing and RGB cycle, and utilities like a digital clock and a QR code display. It also provides a screen test page for checking dead pixels and backlight bleed.

Yes, LightScreen can be used on mobile devices, as well as on laptops and monitors, making it versatile for different types of screens.