Three timers in one page. Use the stopwatch with lap times to measure how long something takes, the countdown timer with a sound alert for cooking, workouts or exams, and the Pomodoro timer for focused study and work sessions. Everything runs in your browser, and the remaining time is also shown in the browser tab title.
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How to use the Online Stopwatch & Timer
- Pick a tab: Stopwatch, Countdown timer or Pomodoro.
- Stopwatch: press Start, use Lap to record split times and Stop to pause. Reset clears everything.
- Countdown: enter hours, minutes and seconds, then press Start. You hear a beep when time is up.
- Pomodoro: set focus and break lengths. After every 4th focus session you get a longer break.
Frequently asked questions
Does the timer keep running if I switch tabs?
Yes. The time is measured with your device clock, so it stays accurate. Keep this page open until the time is up.
Will the alarm play if my phone is locked?
Browsers often pause pages on a locked screen, so the sound may be delayed. For important timers keep the screen on.
What is the Pomodoro technique?
You work in focused blocks, traditionally 25 minutes, separated by short 5 minute breaks. After four blocks you take a longer break of about 15 minutes.
Can I turn the sound off?
Yes. Untick "Play a sound when time is up" below the timer.
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This tool runs in your browser. The files and text you use are not uploaded to a server.