Countdown Timer Online
Set hours, minutes and seconds — plays an audio alarm when time is up. Free, no signup.
QUICK PRESETS
How to Use the Countdown Timer
- 1
Set Your Time
Enter hours, minutes, and seconds in the input fields, or choose a quick preset like 5 min or 25 min.
- 2
Start the Timer
Click Start. The circular progress ring will animate and the remaining time will count down in real time.
- 3
Pause or Reset
Click Pause to freeze the timer at any point, then Resume to continue. Click Reset to start from scratch.
- 4
Alarm Alert
When the countdown reaches zero, an audio alarm plays automatically in your browser — no download required.
About the Online Countdown Timer
A countdown timer is one of the most universally useful productivity tools available online. Whether you're timing a cooking session, running a Pomodoro work block, managing a classroom quiz, or keeping a presentation within time limits, having a reliable countdown timer at your fingertips makes all the difference.
UseToolify's countdown timer runs entirely in your browser — no downloads, no apps, no signup required. Simply enter your desired duration using the hours, minutes, and seconds inputs, or tap one of the quick presets (1 min, 5 min, 25 min, 1 hour, etc.) to get started immediately.
The animated circular progress ring gives you an instant visual sense of how much time remains, making it easy to glance at without reading exact numbers. The timer is SSR-safe and works seamlessly across all modern browsers on desktop and mobile.
When the countdown reaches zero, a pleasant audio tone plays using the Web Audio API — no external files or plugins needed. The alarm works even when your browser tab is in the background (audio may be browser-dependent). You can pause and resume the timer at any point, perfect for unexpected interruptions.
Common use cases include: cooking timers (soft-boiled eggs at 6 minutes), Pomodoro sessions (25 minutes of focused work), classroom tests, workout rest periods, and presentation practice. Teachers love the large display format, and students find the quick presets ideal for study sprints.
You may also find our Pomodoro Timer, Stopwatch, and Countdown to Date helpful.
How to Use
- 1. Set the hours, minutes, and seconds you need.
- 2. Press Start — the countdown runs even if you switch tabs.
- 3. An alarm sounds when the timer reaches zero.
- 4. Use Pause or Reset at any point.
Frequently Asked Questions
Does the timer work when the tab is in the background? expand_more
The timer continues to count down in background tabs. The audio alarm plays when the tab becomes active — browser autoplay policies may mute audio in hidden tabs.
What is the maximum time I can set? expand_more
You can set up to 23 hours, 59 minutes, and 59 seconds — nearly 24 hours.
Does the alarm work on mobile? expand_more
Yes. The Web Audio API is supported on all modern mobile browsers. Make sure your device is not on silent mode.
Is there a full-screen mode? expand_more
Press F11 in your browser for a full-screen countdown — ideal for classrooms and presentations.
Does refreshing the page reset the timer? expand_more
Yes, refreshing resets the timer. Avoid refreshing while the timer is running.
Was this tool helpful?
More Tools
Related Timers
Interval Timer
Pomodoro Timer
Speed Reading Timer
Typing Speed Test
You Might Also Like