ScreenTools
90+ free browser tools for every screen. Zero install.
ScreenTools launched on June 26, 2026 with 2 votes.
What it does
Millions search "white screen for video call" or "dead pixel test" and end up downloading sketchy apps. ScreenTools fixes that — 96 browser-native tools in one bookmark. Use your display as a video-call key light, monitor diagnostic, classroom timer, fake Windows update prank, DVD screensaver, or OLED sleep soundscape. Everything renders live in your tab. No install, no account, no ads. Open, press F, done. Built because I got tired of single-purpose apps for things a browser tab does better.
100+ free browser tools: fullscreen colors, dead pixel tests, classroom timers, fake OS updates & sleep sounds. No install, no account — press F and go.
Colors, monitor tests, timers, fake updates, prank screens, and screensavers. Open the tab, press F, get to work. Press F or use the controls. ESC always brings the browser chrome back. Switch colors, start timers, jump tools without leaving the keyboard. Everything runs locally. No accounts. No telemetry. Tools work offline once loaded. Each tool runs in its own route, opens fullscreen, and remembers nothing except your last brightness setting. Built to be linked, not bookmarked. Turn your screen into any solid color for lighting, photography, calibration, or focus. Free tools to test and diagnose your monitor. Dead pixels, color accuracy, refresh rate, and more. Large, readable timers and…from screentools.co
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White Screen Digital2025 · whitescreen.digital · ▲21Solid colors, pranks, fake updates, screensavers & tools.
White Screen Tool2025 · whitescreens.org · ▲7Full-screen light source for focus, creativity&productivity
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