What is the Pomodoro technique?

It is a time-management method that alternates 25-minute focus blocks with 5-minute breaks, taking a longer break after every fourth block. This timer runs those cycles for you and counts the sessions you finish.

Can I change the focus and break lengths?

Yes. Set any number of minutes for the focus block, short break and long break. Changes apply to the current phase when the timer is paused.

What are the default intervals?

The classic 25 / 5 / 15 setup — 25-minute focus blocks, 5-minute short breaks, and a 15-minute long break after every fourth focus session. You can override all three.

When does the long break happen?

After every fourth completed focus session the timer automatically schedules the long break instead of a short one, then the four-session cycle starts again.

Will it alert me when a block ends?

Yes. A tone plays via the Web Audio API when each focus or break block finishes, and the timer switches to the next phase automatically so you do not have to watch the clock.

Why use the Pomodoro technique?

Short, timed focus blocks make large tasks feel manageable, reduce procrastination, and build in regular rest so you sustain concentration over a longer day.

Is anything sent to a server?

No. The timer runs entirely in your browser using JavaScript and the Web Audio API. No timings, settings or session counts are ever uploaded.

What is the Pomodoro Timer?

Free Pomodoro timer with customizable focus and break lengths, automatic long breaks every four sessions, and a completed-session counter. Runs entirely in your browser — nothing is uploaded. It runs free in your browser on Gera Tools, with nothing uploaded.

Pomodoro Timer — Gera Tools

Name: Pomodoro Timer
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

A Pomodoro timer that runs in your browser

The Pomodoro technique breaks work into focused 25-minute blocks separated by short breaks, with a longer break after every fourth block. This timer automates the whole rhythm so you can just work: start a focus session, get an audible cue when it ends, and let it switch to the right break for you.

The Pomodoro technique explained

Developed by Francesco Cirillo in the late 1980s (he named it after his tomato-shaped kitchen timer — pomodoro is Italian for tomato), the technique rests on a simple insight: the human brain focuses well for short, bounded stretches but struggles to maintain deep concentration for hours without rest. By committing to 25 minutes of uninterrupted work and then deliberately stopping, you avoid the gradual drift of attention that makes long, unstructured work sessions inefficient. The short break resets attention; the long break after four sessions prevents accumulating cognitive fatigue over a full working day.

How it works

The timer cycles through three phases and counts completed focus sessions:

focus block (default 25 min)
 → short break (default 5 min)
 → repeat; after every 4th focus session → long break (default 15 min)
a tone plays at each phase change; the session counter increments per focus block

All three lengths are editable, and the completed-session counter tracks your focused work.

Cycle breakdown

With the classic 25 / 5 / 15 settings, one full cycle of four focus sessions runs:

4 × 25 min focus = 100 min focused work
3 × 5 min short breaks + 1 × 15 min long break = 30 min total break time
The counter reads 4 completed sessions after the cycle

Phase	Default	Purpose
Focus block	25 min	Single task, notifications off
Short break	5 min	Stand, stretch, look away from the screen
Long break (every 4th)	15 min	Full rest — walk, eat, hydrate

Customising the intervals

The 25/5/15 defaults work well for most people, but the technique’s creator always said the specific numbers matter less than the habit of timed, deliberate alternation. Common adjustments include:

52/17 — a variation sometimes cited for deep creative work, with longer focus blocks and longer breaks.
50/10 — common among developers who find context-switching overhead high and need more ramp-up time per session.
15/3 — useful for tasks requiring shorter sustained attention, or during low-energy afternoon hours.

Enter your preferred minutes in each field; changes apply when you start or restart the current phase.

Tips for effective use

Close notifications during focus blocks. A single interruption can cost several minutes of re-focus time.
Write down distractions rather than acting on them immediately. Keep a notepad beside the keyboard and add any unrelated thoughts to a list, then return to the current task.
Count sessions towards a task — for example, “this article should take about 3 Pomodoros.” It builds an instinct for how much time your work actually takes.
Take breaks properly. The short break is genuinely for resting attention, not for quick emails. Step away from the screen.

Everything happens locally in your browser — nothing is uploaded.