Focus Timer
Focus/break interval timer with cycle tracking and an end-of-phase alert.
Not affiliated with, or endorsed by, Francesco Cirillo or the Pomodoro Technique®.
About Focus Timer
Focus Timer runs configurable focus and break intervals with cycle tracking and an end-of-phase alarm — the interval method popularized as the Pomodoro Technique. Default cycles are 25 minutes of focus followed by a 5-minute short break, with a longer break (typically 15–30 minutes) after every four focus blocks. All four durations are adjustable, and the timer keeps a running count of completed focus blocks so you can see your daily total at a glance.
Worked example: start a 25-minute focus block — the display counts down, and at zero the timer beeps and (with permission) sends a desktop notification, then automatically starts a 5-minute break. After four focus blocks the next break is the longer one. Pause, resume, or skip the current phase as needed; the cycle counter updates as you complete blocks. A typical work morning of four cycles takes 25 × 4 + 5 × 3 + 15 = 130 minutes total.
Two notes. The countdown is timestamp-based, so it stays accurate even when the browser throttles the background tab (the same approach the stopwatch and countdown use). Pomodoro durations are conventional defaults — 25/5/15 minutes — but the right focus block length is whatever lets you concentrate without strain; many people find a longer 45- or 50-minute block matches their flow better, while others prefer 15-minute micro-sprints. The 'completed sessions' counter resets when you close the tab and is not persisted across sessions; for a long-term log, jot it down before closing.
All timing runs in your browser. The session counter and your work activity are not uploaded or logged.