The Pomodoro Technique is one of the few productivity methods that has survived for forty years without being turned into a subscription SaaS. The reason is that the core idea is trivially simple and works: you commit to focusing on one task for 25 minutes, knowing that a 5-minute break is coming. The countdown is the commitment device.
This timer implements the classic pattern — 25 minutes of work, 5 minutes of break, with a longer 15-minute break after every four work phases — and lets you adjust the durations if the defaults don’t fit.
The state machine
A Pomodoro timer is a small state machine with three phases and one transition rule:
- Work for N minutes
- When work ends, transition to a short break for M minutes, unless this was the 4th (or configurable Nth) work round, in which case transition to a long break for L minutes instead
- When any break ends, transition back to work
The round counter tracks how many work phases have completed. It increments the moment work ends, not when the break ends — so if you’re in the 3rd break and you skip ahead to work, you’re starting the 4th round.
Example: a typical session
Starting with defaults (25/5/15 minutes, 4 rounds to long break):
| Phase | Duration | What’s happening |
|---|---|---|
| Work 1 | 25 min | Focus on task |
| Short break | 5 min | Step away |
| Work 2 | 25 min | Back to task |
| Short break | 5 min | Step away |
| Work 3 | 25 min | Focus |
| Short break | 5 min | Break |
| Work 4 | 25 min | Focus |
| Long break | 15 min | Longer reset |
| Work 5 | 25 min | Start of next cycle |
Four work rounds = ~2 hours of focused work with 20 minutes of breaks woven in. That’s usually one good session before you need to step away entirely.
When the defaults don’t fit
- Longer focus works for you: try 50/10 or even 90/20. The rhythm is the same; the ratios just change.
- You can’t sit still for 25 minutes: start shorter. 15/3 or 10/2 is fine. The point is the commitment device, not the exact duration.
- You’re doing shallow work (email, admin, small fixes): shorter phases work better because each work unit is already small.
- Deep work or creative flow: some people find the timer disruptive to flow states. In that case, use the timer for the boot-up phase (getting started) and turn it off once you’re in flow.
What this tool does not do
It does not track your tasks, log your sessions, sync across devices, or send you reminders. It is a simple standalone timer. For task tracking, productivity analytics, or multi-device sync, use a dedicated Pomodoro app — many exist. This tool is for the moment you want to start a focused session right now and don’t want to sign up for anything first. For custom work/rest intervals (HIIT, tabata), the interval timer accepts arbitrary durations; for free-running timing, the stopwatch is the open-ended version.