Pomodoro Timer
Focus timer with work & break intervals — track your productivity
📚 Learn more — how it works, FAQ & guide Click to expand
Free Online Pomodoro Timer — Focus, Break, Repeat
The Pomodoro Timer is a free, browser-based focus timer that implements the Pomodoro Technique for time management. It cycles through customizable work sessions (default 25 minutes) and breaks (5-minute short breaks, 15-minute long breaks every 4th cycle). The circular countdown provides a clear visual indicator of remaining time. Audio and browser notifications alert you when each phase ends. All settings are saved locally. No sign-up, no installation, no data upload.
The Science Behind the Pomodoro Technique
The Pomodoro Technique leverages two well-researched principles of cognitive science: timeboxing and distributed practice. Timeboxing — setting a fixed time limit for a task — creates a sense of urgency that combats procrastination and Parkinson's Law (work expands to fill the time available). Distributed practice — spacing learning or work into intervals with breaks — is proven to improve retention, creativity, and sustained performance compared to marathon sessions.
Research published in the journal Cognition found that brief diversions from a task dramatically improve sustained attention. The brain's attentional resources deplete during prolonged focus, but a short break allows partial recovery. The Pomodoro structure of 25 minutes on, 5 minutes off closely matches the natural attention cycle observed in these studies.
How the Pomodoro Cycle Works
A standard Pomodoro cycle consists of four work sessions with breaks in between:
- Pomodoro 1: 25 minutes of focused work, followed by a 5-minute short break
- Pomodoro 2: 25 minutes of focused work, followed by a 5-minute short break
- Pomodoro 3: 25 minutes of focused work, followed by a 5-minute short break
- Pomodoro 4: 25 minutes of focused work, followed by a 15-minute long break
After the long break, the cycle restarts. A full cycle takes approximately 2 hours and 25 minutes, yielding 100 minutes of focused work. Most people complete 8 to 12 pomodoros in a productive workday.
Customizing Your Intervals
While 25/5/15 is the classic ratio, the optimal intervals vary by person and task type. Creative work often benefits from longer sessions (45-50 minutes) because entering a flow state takes time. Routine tasks may work better with shorter intervals (15-20 minutes) to maintain engagement. Deep study sessions sometimes benefit from 50-minute work periods with 10-minute breaks. This timer lets you set work sessions from 1 to 60 minutes, short breaks from 1 to 30 minutes, and long breaks from 1 to 60 minutes.
Benefits of Using a Pomodoro Timer
- Reduces procrastination: Committing to "just 25 minutes" is psychologically easier than facing an undefined work period. The timer creates a contract with yourself.
- Prevents burnout: Mandatory breaks prevent the mental exhaustion that leads to afternoon productivity crashes. Working without breaks is less productive overall despite the extra time.
- Improves estimation: After tracking how many pomodoros tasks take, you develop an accurate sense of effort required. This improves planning and reduces deadline stress.
- Creates accountability: The ticking timer creates gentle external pressure. Knowing a break is coming motivates you to stay focused during the work phase.
- Enhances awareness: The technique reveals how often you get distracted. Each interrupted pomodoro becomes a data point for improving your focus environment.
What to Do During Breaks
Break quality matters as much as work quality. During short breaks (5 minutes): stand up, stretch, hydrate, look at a distant point to rest your eyes (the 20-20-20 rule), or do breathing exercises. During long breaks (15 minutes): take a walk, eat a snack, chat with someone, or do light physical movement. Avoid checking social media or email during breaks — these activities are cognitively demanding and do not provide true rest. The goal is to let the prefrontal cortex recover.
Browser Notifications
This timer uses the Web Notification API to send desktop notifications when a phase ends. On your first visit, the browser will ask for notification permission. Once granted, notifications appear even when the tab is in the background — so you can work in other applications while the timer runs. An audio beep generated through the Web Audio API also plays as an audible alert. Both features work without any plugins or downloads.
How to Use the Pomodoro Timer
- 1
Set your intervals
Adjust the work duration (default 25 minutes), short break (default 5 minutes), and long break (default 15 minutes) using the settings panel. Settings are saved automatically.
- 2
Start the timer
Click Start to begin your focus session. The circular timer counts down visually. The phase label shows whether you are in Focus, Short Break, or Long Break mode.
- 3
Work through your sessions
When the timer reaches zero, an audio notification plays and a browser notification appears (if permitted). The timer automatically advances to the next phase — break after work, work after break. Every 4th break is a long break.
- 4
Track your progress
The session counter shows how many pomodoros you have completed today. Use Pause to take an unplanned break. Use Reset to restart the current phase.