Pomodoro Timer

A focus timer built around the Pomodoro technique: alternating work and break intervals, with adjustable lengths for each. Start, pause, and reset the timer, and see how many focus sessions you have completed today.

Focus

25:00

Focus (minutes)

Break (minutes)

Completed focus sessions today: 0

Runs entirely in this browser tab. Keep the tab open for the timer to keep counting.

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Why use Pomodoro Timer?

This Pomodoro timer counts down a Focus interval, 25 minutes by default, then automatically switches to a Break interval, 5 minutes by default, and back again, so you do not have to remember to restart it between work and rest. Both interval lengths are editable, so if the classic 25/5 split does not fit your attention span, you can set your own. A progress bar under the clock fills as the current interval elapses, giving a visual sense of how much time is left without watching the numbers directly. Every completed Focus interval increments a session counter, saved to this browser's local storage, so you can see how many focused blocks you have finished across the day. Start, Pause, and Reset give full control over the countdown: Pause holds the clock where it is, and Reset returns you to the beginning of a fresh Focus interval. The timer only runs while this tab is open, and because it works entirely with client-side JavaScript, there is no account, no server, and nothing about your work sessions is ever transmitted anywhere.

Key benefits

Automatically alternates between Focus and Break intervals with no manual restart needed
Fully adjustable interval lengths, not locked to the classic 25/5 split
Tracks how many Focus sessions you have completed today
Visual progress bar shows how far through the current interval you are
Runs entirely in your browser, no signup, no account

Features

Countdown timer with Start, Pause, and Reset controls
Adjustable Focus and Break minute fields, defaulting to the classic 25 and 5
Automatic mode switching between Focus and Break when a timer reaches zero
Session counter that persists in this browser across the day
Visual progress bar for the current interval

Popular use cases

Structuring a work session using the Pomodoro technique
Timing study sessions with built-in breaks
Keeping a rough daily count of focused work sessions
Using shorter or longer intervals than the classic 25/5 split to match your own attention span

How to use Pomodoro Timer

1
Set your intervals
Adjust the Focus and Break minute fields to your preferred lengths, 25 and 5 minutes by default.
2
Start the timer
Click Start to begin the countdown for the current mode, shown as Focus or Break above the clock.
3
Let it switch automatically
When a Focus interval ends, the timer switches to Break automatically, and back again, without you needing to restart it.
4
Pause or reset anytime
Click Pause to stop the countdown where it is, or Reset to return to the start of a fresh Focus interval.

Frequently asked questions

What is the Pomodoro technique?

A time-management method that alternates focused work intervals, traditionally 25 minutes, with short breaks, traditionally 5 minutes, to maintain concentration and avoid burnout.

Can I change the interval lengths?

Yes. The Focus and Break minute fields are both editable, so you are not limited to the classic 25 and 5 minute split.

Does the timer keep running if I close the tab?

No. The countdown only runs while this browser tab is open, closing or navigating away stops it.

Is my session count saved?

Yes, your completed Focus session count is saved to this browser's local storage, but it is not synced anywhere else.

What happens when a Focus interval ends?

The timer automatically switches to a Break interval of your set length, and back to Focus when the break ends, no need to press Start again for the switch itself, though the timer only counts down while running.

Last reviewed: July 2026

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