Why does the timer use performance.now()?

Regular JavaScript timers (setTimeout/setInterval) slow down or pause when the browser tab is in the background. This Pomodoro timer uses performance.now() to track elapsed time accurately, so the countdown stays correct even when you switch to another tab to work.

How many pomodoros should I do per day?

Most people aim for 8-12 pomodoros per day (4-6 hours of focused work). The key is quality over quantity — each pomodoro should be uninterrupted deep work. Track your daily count and gradually increase it. This timer shows your session count so you can monitor your productivity.

Can I customize the timer durations?

Yes. This timer lets you adjust work duration (15-60 minutes), short break (5-15 minutes), and long break (15-45 minutes) durations. The classic Pomodoro uses 25/5/20, but many people prefer 50/10/30 for longer deep work sessions. Experiment to find what works best for you.

Pomodoro Timer — 25 Min Focus Timer

Boost productivity with the Pomodoro Technique. 25-minute focused work sessions with short breaks. Stays accurate even when you switch tabs. 100% free.

Focus Time

25:00 Session 1 of 4

Timer Settings

Work (min)

Break (min)

Long Break (min)

0 Pomodoros Today

0 Focus Minutes

Session Tracker

Today: 0 sessions | All-time: 0

What is the Pomodoro Technique?

The Pomodoro Technique is a time management method developed by Francesco Cirillo in the late 1980s. It uses a timer to break work into focused 25-minute intervals (called "pomodoros") separated by short breaks. After completing four pomodoros, you take a longer break of 15-30 minutes.

How to Use This Timer

Start a focus session: Click "Start Focus" to begin a 25-minute work session
Work without interruption: Focus on a single task until the timer rings
Take a break: When the timer ends, take a 5-minute break
Repeat: After 4 pomodoros, take a longer 20-minute break

Why This Timer is Different

Most online timers stop counting when you switch browser tabs. This Pomodoro timer uses performance.now() to track elapsed time accurately, so the countdown stays correct even when you switch to another tab to work. The tab title also updates with the remaining time, so you can see it at a glance.

Frequently Asked Questions

The Pomodoro Technique is a time management method that uses 25-minute focused work intervals separated by 5-minute breaks. After every 4 pomodoros, take a longer break. It helps maintain focus and prevent burnout.

Regular JavaScript timers slow down when the browser tab is in the background. This timer uses performance.now() to track elapsed time accurately, so the countdown stays correct even when you switch tabs.

Most people aim for 8-12 pomodoros per day (4-6 hours of focused work). Quality matters more than quantity — each pomodoro should be uninterrupted deep work.

Yes. Adjust work duration (15-60 min), short break (1-15 min), and long break (10-45 min) in the settings below the timer. The classic Pomodoro is 25/5/20, but many prefer 50/10/30 for deep work.

Last updated: June 2026