Francesco Cirillo chose 25 minutes in the 1980s as a length long enough for meaningful work but short enough that the brain accepts the discomfort. You can tune it — 50/10 works well for deep coding sessions — but 25/5 is a proven default for most knowledge work.

Does the timer keep running in a background tab?

Yes. Browsers throttle inactive tabs but the countdown uses timestamps, not ticks, so it stays accurate. You can switch tabs, lock the screen, or even close the laptop lid and the elapsed time remains correct when you come back.

Should I take the break even if I'm in flow?

For single sessions, finishing the thought is fine. But taking the break prevents the late-afternoon fatigue that costs you two low-quality hours later. Short breaks are the reason Pomodoro produces more output per day, not less.

How many Pomodoros should I do per day?

Eight to twelve is the practical ceiling for deep knowledge work. Past that, quality drops sharply. If you consistently hit ten in a day, you're doing better than most salaried engineers.

What should I do during the 5-minute break?

Get away from the screen. Stand up, stretch, refill water, walk to a window. Avoid: checking email, social media, or starting another task — those don't reset the focus muscle. The break is for your eyes, posture, and cognitive load. Looking at a screen during the break dilutes the benefit; the next focus round will feel harder. Pomodoro veterans treat the break as sacred and protect it from notifications.

Can I use Pomodoro for meetings or collaborative work?

Yes, with adjustments. For pair programming or design jams, set the timer to 50/10 (50 focus, 10 break) — collaborative work has higher coordination cost so longer cycles work better. For solo writing or coding, 25/5 stays the gold standard. For meetings, time-boxing the agenda items (10 min discussion, then move on) works similarly without forcing a structured break. Don't impose Pomodoro on others; it works best when self-chosen.

Productivity · Free tool

Pomodoro Timer

Boost productivity with a customizable 25/5-minute focus timer in your browser. Use it free and instantly with no registration or download required.

Updated June 2026

25:00

Round 1 · Focus

Completed focus rounds today: 0

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What it does

This is a free online pomodoro timer that follows the classic rhythm: 25 minutes of focus, 5 minutes of break, and a longer 15-minute break every four focus rounds. Tap Start, silence your notifications, and go. It runs entirely in your browser, so your streak is private and there's nothing to install.

The pomodoro technique works because it splits vague "work on it" into clear sprints with a deadline. You only have to decide the next 25 minutes — the break is guaranteed. Try pairing each focus round with one specific task, not a to-do list. If 25 minutes feels short or long, swap to your own rhythm by starting and pausing whenever you like.

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Example input & output

Input

Tap Start

Output

25:00 focus → 05:00 break → 25:00 focus → 05:00 break → 25:00 focus → 05:00 break → 25:00 focus → 15:00 long break

One 'set' = 4 focus rounds + 1 long break. Aim for 2–3 sets per day, not 8.

How to use it

Close distracting tabs and silence your phone.
Tap Start — the focus session runs for 25 minutes.
When the timer ends, take the 5-minute break (or 15-minute after every 4th round).
Repeat. Aim for 4 focus rounds in a sitting before a longer stop.

When to use this tool

You're avoiding a task and need a small, finite commitment.
You lose time to context-switching and want forced breaks.
You're pair-programming or studying with someone and want a shared rhythm.

When not to use it

You're already in flow — interrupting yourself breaks a good thing.
The task is genuinely 5 minutes. Just do it.
Your work needs continuous attention (live ops, a surgery, a driving lesson).

Common use cases

Deep-work sprints on writing, coding, studying.
Breaking down a dreaded task into concrete 25-minute units.
Timeboxing creative work so breaks are guaranteed, not deferred.

Frequently asked questions

Why 25 minutes?: Francesco Cirillo chose 25 minutes in the 1980s as a length long enough for meaningful work but short enough that the brain accepts the discomfort. You can tune it — 50/10 works well for deep coding sessions — but 25/5 is a proven default for most knowledge work.
Does the timer keep running in a background tab?: Yes. Browsers throttle inactive tabs but the countdown uses timestamps, not ticks, so it stays accurate. You can switch tabs, lock the screen, or even close the laptop lid and the elapsed time remains correct when you come back.
Should I take the break even if I'm in flow?: For single sessions, finishing the thought is fine. But taking the break prevents the late-afternoon fatigue that costs you two low-quality hours later. Short breaks are the reason Pomodoro produces more output per day, not less.
How many Pomodoros should I do per day?: Eight to twelve is the practical ceiling for deep knowledge work. Past that, quality drops sharply. If you consistently hit ten in a day, you're doing better than most salaried engineers.
What should I do during the 5-minute break?: Get away from the screen. Stand up, stretch, refill water, walk to a window. Avoid: checking email, social media, or starting another task — those don't reset the focus muscle. The break is for your eyes, posture, and cognitive load. Looking at a screen during the break dilutes the benefit; the next focus round will feel harder. Pomodoro veterans treat the break as sacred and protect it from notifications.
Can I use Pomodoro for meetings or collaborative work?: Yes, with adjustments. For pair programming or design jams, set the timer to 50/10 (50 focus, 10 break) — collaborative work has higher coordination cost so longer cycles work better. For solo writing or coding, 25/5 stays the gold standard. For meetings, time-boxing the agenda items (10 min discussion, then move on) works similarly without forcing a structured break. Don't impose Pomodoro on others; it works best when self-chosen.

See how this compares

Head-to-headPomodoro vs FlowtimePomodoro vs Flowtime method: fixed timer boxes vs flexible flow tracking, and which one actually gets more deep work done. Free browser-based Pomodoro timer included.

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