You're giving a presentation and need to keep to 10 minutes. You're proctoring an exam and students need to see the remaining time from across the room. You're cooking and want a timer visible from the counter without squinting at a tiny phone screen. This tool puts a giant digit countdown on a solid-color background — readable from a projector, a wall-mounted monitor, or even the back of a classroom. Pick a preset (1, 5, 10, or 25 minutes) or type your own custom time. Change the background color any time with the color picker or preset swatches. When time's up, the display flashes to grab attention. No signup, no download, no ads over the numbers — just a clean, readable timer.
The timer relies on `setInterval` and wall-clock correction, so it will stay accurate. However, browsers may throttle inactive tabs — keep this page visible for the most precise countdown, especially for test-taking or presentations where every second counts.
Yes — the color picker and preset color buttons work at any time. The countdown continues uninterrupted regardless of background changes.
The display flashes between white and the selected background color and shows 00:00. This visual pulse is hard to ignore even from across the room. Click anywhere or press Esc to stop it and reset the timer.
Each link opens instantly in full screen. White and black are the most searched, but green, blue and pink are popular for video and streaming setups.
Adjustable-color full-screen light for video calls — dial in the perfect color temperature to look natural on camera.
Create a custom-colored glow ring around your webcam window — softer than a solid fill and mimics a physical ring light.
Instant max-brightness white fill — turns your screen into a portable flashlight for finding things in the dark.
Convincing cracked-screen overlays — pick from spiderweb, shatter, glitch, or LCD bleed styles to prank a friend.
Classic Windows, macOS, or Linux-style fake update screens — lock the display and watch coworkers think you're updating.
Animated TV static with a bouncing NO SIGNAL overlay — convincing enough to make someone check the cables.