Keep this page open while the timer runs. A sound plays when the time is up (your device volume must be on).
How to Use the Stopwatch and Timer
Two tools in one page.
- Choose Stopwatch or Countdown timer
- Stopwatch: click Start, use Lap to record times, Pause or Reset
- Timer: set hours, minutes and seconds, or tap a quick button
- Click Start. A sound plays when the time is up
- Keep the page open while it runs
Everything happens inside your browser, so your document is never uploaded.
Why Use This Tool?
Use the stopwatch for speeches, sports, practice and tests. Use the timer for cooking, study, meetings or breaks.
It runs in your browser, so you need no app.
Features
- Stopwatch with hundredths of a second
- Lap times with total time
- Countdown timer with alarm sound
- Quick buttons: 1, 5, 10, 30 minutes and 1 hour
- Pause and resume
- Time shows in the browser tab title for the timer
Frequently Asked Questions
Will the timer ring if I switch tabs?
Usually yes, but some phones and browsers slow down or sleep background pages. Keep the page open and the screen on for important timing.
Why does no sound play?
Check that your device volume is on and not muted. Some browsers allow sound only after you have clicked on the page, and you click Start, so it should work.
How accurate is it?
It uses the high precision clock of your browser, accurate to a fraction of a second.
Is my data saved?
No. Nothing is stored.
Is it free?
Yes, completely free.
About This Tool
A simple stopwatch and countdown timer for everyday use.
It works in your browser and stores nothing.