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Pomodoro Timer runs entirely in your browser using JavaScript (browser). Your data never leaves your device.

Free Pomodoro Timer

Stay focused with the Pomodoro Technique. Work for 25 minutes (one Pomodoro), take a 5-minute break, and after 4 Pomodoros take a 15-minute long break. The timer uses timestamp-based accuracy so it stays correct even if your browser tab is minimized. Browser notifications alert you when each phase ends. Audio cues play when the timer completes. Tracks your completed Pomodoros for the session.

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Frequently Asked Questions

The Pomodoro Technique is a time management method developed by Francesco Cirillo. Work for 25 minutes (one "Pomodoro"), then take a 5-minute break. After 4 Pomodoros, take a longer 15–30 minute break. The structure helps maintain focus and avoid mental fatigue.

The 25-minute interval was chosen by Cirillo to be long enough to make meaningful progress but short enough to maintain concentration without mental fatigue. Many users adjust this — some prefer 45/15 or 50/10 cycles. Use the settings to customize the durations.

Yes. The timer records the exact start time and calculates elapsed time on each tick, so it remains accurate even if the tab is backgrounded, the device sleeps briefly, or the browser throttles inactive tabs.

Click "Enable Notifications" when prompted and allow the notification permission. When a session ends, a browser notification appears even if the tab is not in focus. Notifications require HTTPS or localhost.

Yes. Click the settings gear icon to customize the work duration, short break, and long break lengths. Changes take effect on the next session.

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The Pomodoro Technique — How It Works

The Pomodoro Technique was developed by Francesco Cirillo in the late 1980s. The method breaks work into focused 25-minute intervals (called "Pomodoros") separated by short 5-minute breaks. After four Pomodoros, you take a longer 15–30 minute break. The name comes from the tomato-shaped kitchen timer Cirillo used as a student. The structured intervals create urgency that helps combat procrastination, while the mandatory breaks prevent the mental fatigue that sets in during long uninterrupted work sessions.

Why Breaks Actually Increase Productivity

Neuroscience supports the core idea behind Pomodoro. Sustained attention tasks deplete working memory resources over time, reducing both accuracy and creativity. Short breaks allow the prefrontal cortex to reset and consolidate recent information. Research on "diffuse thinking" (the brain's default mode network activity during rest) suggests that breaks actively help with problem-solving — solutions to difficult problems often surface during a walk or a pause rather than during intense focus. The structured break schedule in the Pomodoro method captures this benefit systematically rather than relying on willpower alone.

Adapting the Pomodoro Technique for Your Work

The 25-minute default is a starting point, not a rule. Knowledge workers doing deep creative or analytical work often find 45–50 minute sessions more effective once they've built focus capacity. Writers and developers frequently report entering a "flow state" that is disrupted by a 25-minute break — in those cases, extending the work session to 45 or 50 minutes with a 10-minute break preserves flow while still providing the structured rest interval. Use the custom settings to experiment and find the interval that works for your work style and task type.

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