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Pomodoro Timer

Run focus and break cycles in the browser.

Use the Pomodoro Timer tool

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What this pomodoro timer does

Pomodoro Timer alternates a focus period with a short break. Set the length of each, start the timer, and it moves from focus to break automatically and counts completed focus sessions. Pause and reset are available at any point.

The timer uses a page interval, so a sleeping tab, a locked phone or a browser that throttles background tabs can make it drift. Treat it as a pacing aid, not a precision stopwatch, and keep the tab visible if exact timing matters.

Why use it

  • Work in fixed blocks instead of an open-ended session.
  • Take breaks before losing focus.
  • Keep a simple count of completed focus blocks.

How to use it

  1. 1Set the focus and break lengths.
  2. 2Press start when you begin working.
  3. 3Stop working when the focus period ends.
  4. 4Repeat and count completed sessions.

Worked examples

Classic cycle

Input

25 minutes focus, 5 minutes break

Output

A focus block, then a break, then another focus block, with sessions counted.

Deep work

Input

50 minutes focus, 10 minutes break

Output

Longer blocks for tasks that need uninterrupted time.

Common mistakes

  • Leaving the tab in the background and trusting the timing.
  • Skipping every break, which defeats the method.
  • Using a timer as a substitute for planning what to work on.

Frequently asked questions

Does it keep running if I close the tab?
No. The timer lives in the page and stops when the page is closed.
Will it notify me?
It does not request notification permission. Watch the display or keep the tab visible.
Are sessions saved?
The count lasts for the current page session only.
Can I change the lengths mid-session?
Yes. New lengths apply to the next period.

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