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Online Stopwatch and Countdown Timer with Alarm

Use the stopwatch to a tenth of a second with lap recording, or set a countdown timer with an alarm at the end. Ideal for sport, cooking, studying or presentations.

How does it work?

  1. Type or paste your data.
  2. The result appears instantly.
  3. Copy or download the result.

Why use Stopwatch & Timer?

  • ✓ 100% free, no limits, no watermark
  • ✓ No sign-up, no install
  • 🔒 Files processed locally: full privacy
  • 📱 Works on desktop, tablet and mobile

Frequently asked questions

Will the timer ring if I switch tabs?

Yes, as long as the page stays open. Keep your device volume on.

Can I record laps?

Yes, click “Lap” while the stopwatch runs to note each split time.

Does the timer ring when the tab is in the background?

Yes, an alarm sounds at the end; keep your volume on.

Does it work offline?

Yes, once the page has loaded.

Is this tool really free?

Yes, 100% free, with no sign-up, no watermark and no usage limit.

Are my files safe?

Yes. Processing happens directly in your browser: your files are never uploaded to a server or stored.

When to use it

The stopwatch and timer are useful for sport (sets, intervals, planks), cooking, Pomodoro study sessions, timed presentations or classroom games and quizzes.

Our tips

  • 💡 Pomodoro: 25 minutes of work, 5-minute break.
  • 💡 Use laps to time each set or speaker.
  • 💡 Go full screen for a display readable from afar.