Countdown Timer
Set hours, minutes, and seconds for a countdown timer, then start it. The timer displays the remaining time in large, easy-to-read numbers that update every second. When the countdown reaches zero, a short beep plays through your speakers using the Web Audio API.
You can pause and resume the timer, or reset it to start over. The visual display shows progress clearly so you can glance at the remaining time without reading small numbers. Useful for cooking, workouts, study sessions, presentations, or any situation where you need a simple countdown.
Everything runs in your browser. The beep is generated locally using the Web Audio API — no sound files are downloaded.
By The Paper Room Editorial Team — Date Tools
Frequently asked questions
Will the beep play if my browser tab is in the background?▼
Most browsers allow the Web Audio API to play sound from background tabs, but some may throttle timers in background tabs, which could delay the beep slightly. For reliable alerts, keep the tab visible.
Can I set a timer for more than 24 hours?▼
Yes. You can enter any number of hours in the hours field. The timer will count down correctly regardless of the duration.
Does the timer keep running if I navigate away?▼
No. The timer runs in JavaScript within this page. If you close the tab or navigate to a different page, the timer stops. Keep the page open for the duration of your countdown.