Pomodoro Timer

How the cycle works

Press Start and a Focus session begins. When it ends, an alarm plays and a Break starts automatically, no click needed, because a break should start right away. When the Break ends, the alarm plays again, but the next Focus session waits for you to press Start, so you resume working when you're actually ready, not the instant a timer says so. Every fourth completed Focus session, the break that follows is automatically the longer "long break" length instead of the short one.

Presets, or set your own lengths

Three quick presets cover the most common setups:

• Classic (25 / 5): the original Pomodoro Technique lengths, with a 15-minute long break every fourth round
• Long focus (50 / 10): for deeper work blocks with fewer interruptions, 30-minute long break
• Short (20 / 5): a lighter 20-minutes-on, 5-minutes-off rhythm, also the answer if you specifically want a "20 minute work, 5 minute break" cycle

Or edit the Focus, Break, and Long break fields directly for any combination you want, in whole minutes, before pressing Start.

The session counter

"Completed focus sessions" ticks up by one every time a Focus period finishes, so you always know how many rounds you've done without keeping count yourself. It resets to zero when you press Reset. Want to end a Focus or Break period early instead of waiting it out? Skip phase jumps straight to the next one (a skipped Focus session still counts toward the long-break cadence).

Hearing each handover, or muting it

Every phase change plays a short two-tone beep, generated in your browser rather than loaded from a file. Because the cycle moves on without you, that beep is doing more work here than on a single countdown: it is how you learn that focus ended and the break has already begun. Tap the speaker icon first if you would rather work in silence, and the phase badge plus the status line still change, so a muted cycle is still a readable one. Fullscreen mode fills the screen with the current phase, which is useful on a second monitor or a tablet parked next to you.

Working in another tab during a focus session

A focus session is time you are supposed to spend elsewhere, so the cycle has to survive being ignored. Browsers throttle background tabs to save battery, and a timer that counts one second at a time would slip behind and hand over late. Each phase here fixes its own end time the moment it starts, then measures the present moment against it, so twenty-five minutes of work in a different window still flips to Break at the right second. The tab title carries the remaining time and a phase icon, which makes the tab strip a usable status bar.

Just need a single countdown instead?

If you don't need the automatic cycling, the main online timer and its duration presets (5, 10, 15, 20, 30, 45 minutes, 1 hour) are the same underlying tool without the phase-switching, useful for a single work block or break with no cycle to manage.