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Pomodoro Timer

Online Pomodoro timer with customisable focus and break durations.

25:00
Focus
0
in cycle (4 → long break)
0
focus sessions
0h 0m
focus time
Current cycle
→ Long Break

Why the Pomodoro Technique works

The Pomodoro Technique exploits two well-documented psychological principles: the urgency effect (a ticking clock creates mild pressure that increases focus) and structured rest (regular breaks prevent cognitive fatigue and maintain sustained attention over hours). Studies on attention show that the brain cannot sustain peak focus indefinitely — short breaks reset alertness and improve overall performance.

How to use this timer effectively

  1. Before starting a pomodoro, write down the single task you will work on. Undivided attention is key.
  2. Set the timer and work until it rings. If a distraction pops into your head, write it down and return to the task.
  3. Take a genuine short break — away from the screen.
  4. After 4 pomodoros, take a longer break to fully recharge.
  5. Track how many pomodoros complex tasks take to improve future estimates.

Customising for your work style

The classic 25/5 split works well for most tasks. For deep work sessions like writing, coding, or research, many people prefer longer intervals (45–50 minutes focus, 10–15 minutes break). For administrative tasks or when energy is low, shorter sessions (15–20 minutes) can feel more achievable. Experiment and find what sustains your best performance.

Frequently asked questions

What is the Pomodoro Technique?
The Pomodoro Technique is a time management method developed by Francesco Cirillo in the late 1980s. You work in focused 25-minute intervals (called 'pomodoros'), followed by a 5-minute short break. After every 4 pomodoros, you take a longer 15–30 minute break. The technique reduces mental fatigue and improves focus.
Can I change the default durations?
Yes. The three input fields at the top let you set custom durations for focus time, short break, and long break in minutes. Changes take effect on the next timer start. A common variation is 50-minute focus with 10-minute breaks for tasks requiring deep concentration.
How many pomodoros should I do per day?
Most practitioners recommend 8–12 pomodoros (4–6 hours of focused work) for knowledge workers. Research suggests the human brain can sustain truly deep focus for about 4–6 hours per day maximum. Trying to do more often reduces quality rather than increasing output.
What should I do during breaks?
Short breaks (5 min): stand up, stretch, get water, look away from screens. Avoid checking social media as it can re-engage the mind instead of resting it. Long breaks (15–30 min): walk, eat, meditate, or do something completely unrelated to work.
Does this timer make sound when it finishes?
Yes, a gentle audio beep plays using the Web Audio API when a phase ends. No downloads or permissions are needed — it uses the browser's built-in audio capabilities.

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