Lite Tools

Pomodoro Timer

Classic 25/5 focus timer with automatic work-break cycles.

Take a long break after every N focus sessions

Ready: press Start to begin a focus session

25:00

Completed focus sessions: 0

Tip: a chime plays at each phase change (after one interaction with the page). Keep this tab in the foreground: the browser tab title always shows the current phase and remaining time.

How to use

  1. Adjust the focus, short-break and long-break lengths plus the "rounds before long break"; defaults are 25 / 5 / 15 minutes with a long break every 4 rounds.
  2. Press "Start" to begin a focus session; when a phase ends a chime plays and the timer switches to the break automatically, then back to focus.
  3. While running, the same button becomes "Pause": pause and resume any time. "Skip" ends the current phase immediately; "Reset" clears the round count and returns to the start.
  4. Each completed focus session adds one to the counter below, and the tab title shows the current phase and remaining time so you can track progress from other tabs.
  5. Remaining time is computed from the target end timestamp, so throttled background tabs never cause drift. Duration changes apply from the next phase: press "Reset" to apply them immediately.

FAQ

What is the Pomodoro Technique?
It splits work into cycles of 25 minutes of focus followed by a 5-minute short break, with a longer 15–30 minute break after every four pomodoros. The rhythm keeps concentration high and fatigue low. This tool ships with those defaults and lets you customize everything.
Does "Skip" count as a completed round?
No. Only a focus session that runs to the end counts toward the completed-round tally; "Skip" simply ends the current phase and moves to the next one. Whether the next break is a long one is decided automatically by whether your completed focus rounds have reached the configured number.
Why don't I hear the chime?
Browsers only allow audio after the page has received a user interaction, so press "Start" first. If it is still silent, check the system volume and make sure the tab is not muted; on devices that support vibration, the timer falls back to a vibration alert when audio is unavailable.
Does switching tabs break the timer?
No. The remaining time is calculated from the difference between the target end timestamp and the current time, so even when the browser throttles background timers the value re-syncs the moment you return. To hear the chime on time, keeping the tab in the foreground is still recommended.

How to use

  1. Configure the cycle

    Adjust Focus length (1-180 min), Short break (1-90), Long break and Rounds before long break (1-10). Defaults are 25 / 5 / 15 minutes with a long break every 4 rounds.

  2. Start a focus session

    Press Start to begin. The big digits and progress bar run down, and the browser tab title shows the current phase and remaining time even from other tabs.

  3. Let phases rotate

    A chime plays when focus ends, and the short break starts automatically. After the set rounds the long break kicks in. Each finished focus session adds one to the counter.

  4. Pause or skip

    While running the button becomes Pause for instant interruptions. Skip ends the current phase and moves on immediately, but never counts toward completed rounds.

  5. Reset for a clean slate

    Duration changes apply from the next phase. Press Reset to apply them now and clear the round count for a completely fresh start.

About this tool

This timer implements the Pomodoro Technique: 25 minutes of focus, then a 5-minute short break. A longer break is inserted after every set number of pomodoros, four by default. Focus, short-break and long-break lengths plus the round count are all customizable. A chime marks each phase change. Remaining time is derived from the target end timestamp, so throttled background tabs never knock the clock off course.

It fits coding sessions, thesis writing and exam revision, anything needing sustained attention. Keep the defaults for the classic rhythm. Stretch focus to 45 minutes on sharp mornings and drop to 20 after lunch for a schedule you can actually keep. Completed focus sessions tally right under the clock. The tab title mirrors the current phase, so progress stays visible from anywhere.

How it works

The Pomodoro Technique comes from Francesco Cirillo. As a university student in the late 1980s he challenged himself to ten minutes of focus with a tomato-shaped kitchen timer. The method later crystallized into the classic loop: 25 minutes of focus, a 5-minute short break, and a long break every four rounds. Those are the defaults this tool ships with. The number 25 was never the point; the discipline was. One task per interval, and a break spent entirely away from the work. People who stretch focus to 45-50 minutes usually lean on the roughly 90-minute ultradian cycle as justification. The four settings here can change; the two rules should not.

Breaks are part of the machinery, not a reward. Organizational researcher Sophie Leroy described attention residue in 2009: switching from task A to task B leaves part of your attention stranded on A. The short break exists to flush it. Push through break after break and accuracy and speed sag visibly in the back half of the day. The long break restores motivation alongside stamina. By handing phase switching to a chime and automatic rotation, the timer enforces the rule for you. Just five more minutes never quietly becomes an hour. That is why the reminder belongs to the tool rather than to willpower.

When to use it

  1. Deep work on code

    Full-screen the IDE, silence notifications and touch only the current function. When the chime fires, commit or stash and spend the short break standing up and looking far away. Eight to ten full rounds a day is already formidable.

  2. Long-form writing

    Starting is the hard part, so make the focus interval a single deliverable: 300 written words. Edit after the break, and close out a whole section before each long break. Procrastination loses the seam it feeds on.

  3. Homework with a child

    Share the round: 25 minutes of homework for them, 25 minutes of reading for you, then move around together. The visible round counter beats repeated nagging, because progress becomes something the child can see and own.

Tips & tricks

  • Skip only switches phases and never counts toward the tally; let each focus session finish naturally for accurate statistics.
  • If the chime is silent, interact with the page once before starting; vibration takes over where audio fails.
  • Treat the tab title as a secondary progress bar. A glance between meetings shows the minutes remaining.

Things to watch

  • Keep the timer tab in front

    The tab title shows the phase and remaining time from the background. A throttled background tab may deliver its chime late. Keep the page on the main screen or a second display during deep work. Phase changes then land on time.

  • Do not shrink the long break

    The long break is the only deep exhale in the cycle. Doomscrolling through it leaves you more drained. Low-stimulation moves like stretching, water and looking far away restore the next loop. Do not let it become a second short break.

  • A greedier round count backfires

    Raising the rounds before a long break to 8 or 10 means nearly two hours without a pause. The last rounds collapse in quality. A stable 3-4 round loop, repeated all day, beats the ambitious one.

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