25 Minute Timer — Free Pomodoro Technique Timer Online
This free browser-based 25 minute timer is built for the Pomodoro Technique — the globally popular productivity method of working in focused 25-minute sessions separated by short breaks. Press Start and dedicate yourself fully to one task. When the 25 minutes are done, a chime plays automatically to signal your break time.
Unlike a phone timer that pulls you away from your work, this timer runs in a browser tab and displays the remaining time in the tab title — so you can check your progress with a glance at your taskbar without switching context. No installation, no account, no ads interrupting your flow.
How to Use the Pomodoro Technique with This Timer
- Choose one task and write it down.
- Press Start — work on only that task for 25 minutes.
- When the alarm sounds, mark one Pomodoro complete and take a 5-minute break.
- After 4 Pomodoros, take a longer 15–30 minute break.
Frequently Asked Questions
The Pomodoro Technique is a time management method developed by Francesco Cirillo in the 1980s. It uses timed intervals (classically 25 minutes) of focused work separated by short breaks. The name comes from the tomato-shaped kitchen timer Cirillo used as a student. Today it is used by millions of students, developers, writers, and professionals worldwide to fight procrastination and maintain focus.
Research on cognitive load shows that human attention degrades significantly after roughly 20–30 minutes of sustained deep work. The 25-minute interval is long enough to make meaningful progress on a task while being short enough to feel approachable and to prevent mental fatigue. It creates urgency that combats procrastination — knowing you only need to focus until the timer rings makes starting easier.
Yes. When the countdown reaches zero, a three-tone chime plays automatically using your browser's built-in Web Audio API. No plugin, extension, or download is needed. Keep your device volume on and the browser tab open. The alarm plays even if the timer tab is not the active tab.
Yes. Click Pause at any time to freeze the countdown without losing your progress. Click Resume to continue from exactly where it stopped. Click Reset to return to 25:00 and start fresh.
Yes. The timer continues counting down in the background regardless of which tab is active. The browser tab title updates every second (e.g., "18:32 — 25 Min Timer") so you can monitor progress from your taskbar. The alarm sounds when time is up regardless of which tab you are on.