About ScreenTools

ScreenTools is a free collection of browser-based screen tools for screen colors, display testing, lighting, focus and harmless visual effects.

The site is built for people who need a quick white screen, black screen, custom color screen, dead pixel test, monitor test, screen flashlight or video call light.

The tools do not require accounts, payments, downloads or browser extensions. Fun screens are clearly labeled as visual effects only.

Install as app

You can install ScreenTools as a browser app on supported browsers for faster access to fullscreen tools and web screensavers. Use your browser menu and look for Install, Add to Home Screen or Add app.