Toolkeel

Online timer and stopwatch

Time cooking, workouts, exams, presentations or focus sessions. The tab title shows the time left even while you use other tabs.

  • Free
  • Private
  • No sign-up
0:00

Stays on this device. Network requests since you started: 0 How to check this yourself
  1. Your numbersRead from your device
  2. Worked on in this tabBy code running in your browser
  3. Ready to copyNothing is stored

Never sent to a server. See how to check

How to use it

  1. Choose Timer, Stopwatch or Pomodoro.

  2. Set a time or pick a preset.

  3. Select Start; the tab title shows the time remaining.

About this tool

The timer counts down and plays a short tone when time is up (turn your volume on). The stopwatch measures to a hundredth of a second, with lap and split times. The pomodoro timer alternates 25-minute focus sessions with 5-minute breaks and a longer break after every fourth session, a technique developed by Francesco Cirillo for steady, focused work.

Time is measured from your device's high-resolution clock rather than by counting ticks, so it stays accurate even if the browser slows the page in a background tab.

Good to know

  • The alarm needs sound on and the tab to stay open (closing it stops the timer).
  • Some phones pause pages when the screen locks.

Frequently asked questions

Will the timer keep running in another tab?

Yes. It uses the system clock, so it stays accurate, and the tab title shows the remaining time.

Why did I not hear the alarm?

Check that your volume is up and the tab is not muted. Some browsers block sound until you have clicked on the page once.

What is the pomodoro technique?

Work in focused 25-minute blocks separated by short breaks, with a longer break after four blocks. It helps maintain concentration and avoid burnout.

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Last updated 2026-10-20 by the Toolkeel team. How we build and check our tools.