Countdown Timer
Count down to any date.
Countdown Timer at a glance
Countdown Timer is a free online app you can use right now to count down to any date โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Productivity
About Countdown Timer
Set a duration or a target date and watch the countdown, with an alert when it reaches zero.
Useful for the ordinary things a kitchen timer covers โ cooking, laundry, a limited break โ and for the less ordinary ones where a visible deadline changes behaviour. A countdown on a meeting agenda item or a timeboxed task is a surprisingly effective constraint, because work expands to fill available time and a visible clock is what makes the limit real.
For counting down to a date rather than a duration โ a launch, an exam, a deadline โ the display makes remaining time concrete in a way a calendar does not. 'Three weeks' and '19 days' describe the same period and prompt noticeably different urgency.
One practical caution: browsers throttle background tabs aggressively to save battery, so an alert from a hidden tab can be delayed by seconds or, on mobile with the screen off, considerably longer. Keep the tab visible when the exact moment matters, and use your phone's own alarm for anything you genuinely cannot miss.
How to use Countdown Timer
- Enter a duration, or pick a target date and time.
- Start the countdown and leave the tab visible if exact timing matters.
- An alert sounds when it reaches zero.
Frequently asked questions
Will the alarm fire if I switch tabs?
Usually, but it can be delayed. Browsers throttle background tabs to save power, and on mobile with the screen off the delay can be significant. Keep the tab visible when the exact moment matters.
Can I count down to a specific date?
Yes โ set a target date and time rather than a duration, and it counts down to that moment. Useful for launches, exams and deadlines.
What happens if I reload the page?
The countdown resets. Set it again after reloading, and avoid reloading while a timer you care about is running.
Can I run more than one timer?
One per tab. Open the page in several tabs if you need parallel timers, though be aware only the visible tab keeps perfect timing accuracy.