Pomodoro Timer

1. 01Adjust the durations (optional)Change the focus, short break, and long break lengths, and how many sessions happen before a long break — while the timer is idle.
2. 02Press StartThe timer counts down the current phase and automatically moves to the next one when it reaches zero, with a short chime.
3. 03Pause, resume, or skip as neededPause and resume without losing your place, or skip ahead to the next phase manually.

• Focused work or study sessionsBreak work into timed intervals with regular breaks, a widely used technique for maintaining focus over longer stretches.
• Customized work/break ratiosNot everyone works best on 25/5 — adjust the focus and break lengths to whatever ratio suits your own work style.
• Tracking session countSee how many focus sessions you have completed in a sitting, useful for a rough sense of total focused time.

• Default schedule25 minutes focus, 5 minutes short break, repeated 4 times, then a 15-minute long break before the cycle repeats.
• A longer-focus variantSome people prefer 50-minute focus sessions with 10-minute breaks — enter these directly since every duration is fully adjustable.

The 25-minute focus interval and 5-minute break is the conventional split popularized by the Pomodoro Technique. It is a widely used, practical starting point — not a scientifically proven "optimal" interval for everyone. Attention span, task type, and personal preference all vary, so this timer treats every duration as freely adjustable rather than fixed.

The countdown is calculated from an absolute end time rather than simply ticking a counter down, so it stays accurate even if your browser tab is in the background and gets throttled by the browser — the displayed time is always recomputed from the actual clock, not accumulated tick by tick.

Pausing freezes the remaining time exactly where it was; resuming picks up from that exact point. Reset returns to the beginning of a fresh focus session and clears the completed-session count. Skip immediately advances to the next phase (short break, long break, or focus) without waiting for the countdown to finish.

Is 25 minutes of focus scientifically proven to be optimal?

No. 25/5 is a widely used conventional default, not a scientifically established universal optimum. Adjust the durations to whatever works best for your own focus and task type.

What happens when I switch to another tab?

The timer keeps counting accurately in the background, since it tracks an absolute end time rather than a simple countdown — you will not lose time even if the tab is inactive for a while.

Can I change the timer lengths?

Yes. Focus length, short break length, long break length, and how many sessions happen before a long break are all adjustable while the timer is idle.

Does pausing lose my progress?

No. Pausing freezes the exact remaining time, and resuming continues from that same point.

Is my session data saved?

No. Everything runs in your browser; nothing is sent to a server, and your session count resets when you reset the timer or leave the page.