Pomodoro Timer
A configurable Pomodoro timer that cycles through focused work sessions, short breaks, and long breaks.
About the Pomodoro Timer
The Pomodoro Timer is a focus tool that splits your work into timed sessions separated by short, restorative breaks. Set a work length (25 minutes by default), a short break (5 minutes), a long break (15 minutes), and how many work rounds you want before that longer break arrives. Press Start and the timer counts down a big, easy-to-read MM:SS display, automatically advancing from focus to break and back again while keeping a running tally of the pomodoros you've finished. Everything happens in your browser — nothing you enter is uploaded, logged, or stored on a server.
The timer is built to stay accurate. Instead of naively subtracting one second every tick — which quietly drifts when a browser tab is backgrounded or throttled — it locks onto a target end time and computes the remaining time from your device's clock on every update. That means a 25-minute session ends 25 real minutes after you start it, even if you switch tabs mid-session. When a phase completes, the countdown moves on by itself: work flows into a short break, and after your chosen number of rounds it rolls into a long break before starting the cycle again.
How to use
- Set your session lengths. Adjust the Work, Short break, and Long break fields (in minutes) if the defaults don't suit you.
- Choose your rounds. The Rounds field controls how many focused work sessions happen before a long break.
- Press Start. The large timer begins counting down and the current phase label shows whether you're in Focus or a break.
- Work until the buzzer. When the countdown reaches zero, the timer automatically advances to the next phase and updates the completed-pomodoro count.
- Pause any time to step away — your remaining time is preserved exactly. Press Start again to resume.
- Skip to jump straight to the next phase, or Reset to return everything to the first work session and zero your count.
Settings are locked while the timer is running so you can't accidentally change a session mid-count. Pause first, adjust, then continue.
The Pomodoro Technique
The Pomodoro Technique is a time-management method created by Francesco Cirillo in the late 1980s, named after the tomato-shaped ("pomodoro" in Italian) kitchen timer he used as a student. The idea is simple: work in a single-tasking sprint of about 25 minutes, then take a short break to recover. After four such sprints, you take a longer break. Each completed work sprint is one "pomodoro."
The structure works because it makes starting easier — committing to just 25 minutes is far less daunting than an open-ended task — and the enforced breaks protect against the fatigue that erodes concentration over a long day. The regular rhythm also gives you natural checkpoints to review progress and decide what to tackle next.
Frequently asked questions
What are the default Pomodoro settings?
The timer starts with the classic configuration: 25-minute work sessions, 5-minute short breaks, a 15-minute long break, and four work rounds before each long break. You can change any of these to fit your own focus rhythm.
Is the timer accurate if I switch tabs?
Yes. The countdown is anchored to a target end time and recalculated from your system clock on every update, rather than counting ticks. So even if your browser throttles the tab in the background, the session still ends at the correct real-world moment.
Does the timer keep running if I close the tab?
No. This tool is entirely client-side and holds its state in memory only, so closing or reloading the tab resets it. Nothing is saved to your device or to any server, which keeps the tool private but means it won't persist across sessions.
What's the difference between Skip and Reset?
Skip immediately ends the current phase and advances to the next one — useful if you finish early or want a break sooner. Reset returns the whole timer to the beginning: back to the first work session, with the completed-pomodoro count set to zero.
Can I change the session lengths while the timer is running?
The setting fields are disabled while the timer is active to prevent accidental edits mid-session. Press Pause, adjust the values, and then resume — the new lengths apply from the current or next phase.
Will it make a sound when a session ends?
This version advances phases silently and updates the on-screen phase label and count instead, so it won't interrupt a quiet room. Keep the tab visible, or glance at it between tasks, to see when a session flips to a break.