ToolStack › Pomodoro Timer
Productivity Tool

Pomodoro Timer
— stay in the zone.

25-minute focus sessions, short breaks, and long breaks. Track tasks, log completed sessions, and build a deep work habit that sticks.

25:00
FOCUS
0
Pomodoros
0m
Focus Time
0
Streak
Task List 0 tasks
No tasks yet — add one above
Timer Settings
🍅 Focus
25 min
☕ Short Break
5 min
🌿 Long Break
15 min
Pomos until long break
4
Sound alerts
Session Log
No sessions logged yet

What is the Pomodoro Technique?

Developed by Francesco Cirillo in the late 1980s, the Pomodoro Technique breaks work into 25-minute focused sessions separated by short breaks. After 4 sessions (one "cycle"), you take a longer break. The name comes from his tomato-shaped kitchen timer.

Why does it work?

It creates artificial urgency (you only need to focus for 25 minutes), reduces the impact of internal and external interruptions, forces regular rest that prevents mental fatigue, and makes large tasks feel manageable by breaking them into timed chunks.

Customising your timer

The traditional 25/5/15 split works for most people, but feel free to adjust. Deep technical work often benefits from longer sessions (50 minutes). Creative work or studying may need shorter cycles. Use the settings panel to dial in what works for you.

Making it a habit

Start with just 2–3 pomodoros per day and build up. Track which tasks you worked on each session. Over time, you'll notice how many pomodoros different task types take — which makes planning your day dramatically easier.

Frequently Asked Questions
What should I do during a break? ▾
Short breaks (5 min): stand up, stretch, get water, look out a window — anything that rests your visual focus and gets you moving. Avoid screens if possible. Long breaks (15+ min): take a walk, eat something, or do light exercise. The goal is genuine mental recovery, not just switching to a different screen.
What if I get interrupted mid-session? ▾
If interrupted for more than a few seconds, the original technique says to abandon the pomodoro and restart. In practice, use your judgement — a 30-second interruption doesn't invalidate 20 minutes of work. The key rule is: if you lose your train of thought entirely, restart. If you refocus quickly, continue.
Can I change the timer length? ▾
Yes — use the Timer Settings panel to adjust focus time, short break, long break, and the number of sessions per cycle. Changes take effect the next time you start or switch modes. Many people find 50/10 works better for deep work, while 15/5 suits tasks requiring frequent context-switching.
Will the timer work if I switch tabs? ▾
Yes — the timer runs in the background using JavaScript's setInterval. The tab title also updates with the current time so you can glance at your browser tab without switching back. When a session ends, a sound alert and browser notification (if permitted) will let you know.
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How to Use the Pomodoro Timer

Work in focused 25-minute sessions with structured breaks to maintain concentration all day.

01
Add your tasks
Before starting, enter 2–3 tasks you want to complete today. Having a task list makes it easy to pick up where you left off after each break.
02
Start a Pomodoro session
Press Start. You have 25 minutes of focused work time. During this time, do only the task at hand — no checking email, social media, or messages.
03
Handle interruptions
If something urgent comes up during a session, write it down and deal with it after the Pomodoro ends. Protect the 25 minutes. An uninterrupted Pomodoro has significantly higher output than a fragmented one.
04
Take your break
After 25 minutes, a sound plays and you get a 5-minute break. Step away from your screen — stretch, get water, look out a window. Don't skip breaks.
05
Take a long break every 4 sessions
After 4 Pomodoros, take a 15–30 minute break. This is when your brain consolidates what you've learned and resets for the next set of four.
💡
💡 The 25-minute session isn't arbitrary — it's slightly shorter than the average person's natural attention span, so you almost always end a session feeling like you could have kept going. That feeling is the point.