What This Bomb Timer Does
This is a fun online bomb-style countdown. Set a fuse from 10 seconds up to anything you like, click Light the Fuse, and the big digital readout starts counting down. As the timer runs the whole stage pulses red, the warning symbols flash, and the ticks audibly speed up. In the final ten seconds the screen shakes. At zero you get a satisfying flash-of-light BOOM and the alarm sound. No actual bombs were harmed.
What It's Good For
- Party games - Hot potato, charades, "don't get caught holding the bomb" passing games
- Classrooms - Make a timed activity feel high-stakes without being scary
- Quiz shows - Add tension to a buzzer round
- Escape room timers - Project on a wall for a final-countdown moment
- Kids' games - "Beat the bomb" cleanup challenges
- Streaming - Drop into OBS as a browser source for a dramatic countdown overlay
How to Use
- Pick a fuse length - Tap a preset or type a custom value (
5,1:30,0:45) - Click "Light the Fuse" - or click the digits, or press Space
- Go fullscreen - The ⛶ button or F fills the screen for maximum drama
- Mute the ticks - The 🔊 button toggles all sound (and the explosion)
- Defuse anytime - Reset stops the timer immediately
The Stages of the Countdown
- Plenty of time - Slow pulse, soft ticks, calm red glow
- Halfway - Pulse speeds up, ticks get higher pitched, warning symbols flash faster
- Final 10 seconds - Stage shakes, ticks become rapid, glow goes full red
- Zero - White-yellow-orange explosion flash, big BOOM text, alarm sound, then back to defused
Sound and Accessibility
The ticking and the explosion use the Web Audio API and the site's alarm sound. If you'd rather play silently — or you're in a classroom — tap the 🔊 icon in the top-left of the stage to mute everything. The visual countdown still works exactly the same.
Tips for Maximum Fun
- Project it - The bomb effect is way more dramatic on a big screen in a dim room
- Pair it with a game - Pass an object around a circle; whoever's holding it at zero is "out"
- Short fuses - 10 to 30 seconds creates the most tension for quick rounds
- Long fuses - For escape-room-style multi-minute drama, set 5+ minutes and let the slow pulse build