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Online Timer

UTL·11
Drift-proofNo sign-upRuns in your browser
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Stopwatch
Stopwatch — hundredths included. Laps appear in the card below.
⏰ Time’s up!
First screen: quick start, the timer and its settings. More tools below.
Stopwatch laps
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No laps yet. Start the stopwatch above and press Lap. Best lap shows in green, slowest in red.

Laps live in this tab only: copy them before closing.

Your focus (this browser only)NEW

Today

0 m

Sessions

0

Streak

0 days

Completed Pomodoro focus time, saved only on this device. Nothing is uploaded.

Interval builderNEW

Work

s

Rest

s

Rounds

Total time 8 min. Beeps at every change.

Multi-timerNEW

Run several countdowns at once, each with its own label and alarm.

ADVERTISEMENT (reserved)

Five timers in one place: a stopwatch with laps, a countdown timer with presets and an audible alarm, a Pomodoro focus timer with long breaks, an interval timer for workouts, and a multi-timer that runs several countdowns at once.

100% free · No sign-up · No daily limits · No watermarks · Processed in your browser — files never leave your device

UNDERSTAND YOUR RESULTS

Online Timer — Stopwatch, Countdown & Pomodoro in One Place guide

Three timers in one place: a stopwatch with laps, a countdown timer with an audible alarm, and a Pomodoro focus timer with editable work and break lengths.

How to use this tool

  1. Pick your timer from the tabs. Stopwatch for timing something open-ended, Countdown for a fixed duration with an alarm, Pomodoro for focused work sessions with breaks, Intervals for work and rest rounds, and Multi-timer when several countdowns need to run at once.
  2. Fastest start: tap a preset — 1 to 60 minutes, cooking times for eggs, pasta, tea and rice, or workout and study presets like HIIT and 50/10 study — or set hours, minutes and seconds yourself under Custom time. You can also save your own presets; they stay in this browser.
  3. Stopwatch: press Start, then Lap to record split times — each lap shows its own duration and the running total, the fastest lap in green and the slowest in red — and Pause or Reset as needed. Laps can be copied as text or downloaded as a CSV file. Times are kept to hundredths of a second.
  4. Countdown: press Start and watch the ring drain and the end time count down. At zero the alarm sounds and the page announces “Time’s up” — keep the tab’s sound on. Add a minute mid-run with +1 min, share a ready-set timer with the Share timer link button, and turn on Notify me if you also want a system notification.
  5. Pomodoro: set your focus, short break and long break lengths (25, 5 and 15 minutes are the classic defaults) and how many sessions come before the long break, then press Start. The timer beeps between phases, counts completed sessions, shows your progress as dots, and can start breaks and focus sessions automatically. Completed focus time is totalled under Your Focus — stored on this device only.
  6. Intervals: in the Interval Builder set work seconds, rest seconds and rounds — HIIT 40/20 and Tabata 20/10 are built in, boxing rounds too — then press Start intervals. The timer beeps at every change of pace and shows the round you are on.

A worked example

A home cook starts a 12-minute countdown for pasta, and — because the timer is computed from the clock rather than counted in ticks — it still alarms at exactly the right moment even though the recipe video in another tab made the browser sluggish. A student runs 25/5 Pomodoros through an evening of revision and finishes with four completed sessions counted on screen and in the Your Focus totals. A trainer runs 40/20 intervals for a class while two multi-timers count down the eggs and the oven — all from the same page.

What you can do with this tool

How it works

Every timer on this page measures time the drift-proof way: it stores a target moment (start or end) taken from the device’s high-resolution clock and, on every screen update, displays the difference between that moment and now. A naive timer that adds “one second” per tick loses time whenever the browser is busy; this one cannot drift, because there is nothing to accumulate — the clock is the source of truth. The alarm is synthesised live with the Web Audio API, so there is no audio file to load, and you can pick its voice — bell, chime, digital or soft — and its volume. The extras are local too: presets, settings and focus totals are kept in your browser’s local storage, and notifications, the screen-awake lock, the tab-title countdown and the mini window use standard browser features, only when you switch them on.

Frequently asked questions

Why does this timer stay accurate when others drift?

Tick-counting timers add a fixed step every interval, and browsers delay intervals under load — so the errors add up. This page never counts: it subtracts the stored start (or end) time from the current clock on every repaint, so a busy browser shows a slightly late frame but never a wrong time.

Will the countdown alarm work if I switch to another tab?

The countdown itself stays exact, and the alarm sounds if the tab is still open and your device is not muted — browsers allow audio from a page you have interacted with. Turn on Notify me and you will also get a system notification at zero. If you fully close the tab or the browser, the timer stops existing; keep it open in the background instead.

What are the best Pomodoro lengths?

The classic technique is 25 minutes of focus and a 5-minute break, with a longer 15–30 minute break after four sessions. Shorter 15/3 cycles suit fragmented days; deep work may prefer 50/10. The right length is the one you will actually repeat — start with 25/5 and adjust.

Can I run several timers at the same time?

Yes. The stopwatch, countdown, Pomodoro and interval timers each keep their own state and keep running while you look at another tab, and the Multi-timer runs up to eight more countdowns side by side, each with its own label and alarm — handy when the pasta, the eggs and the oven all finish at different times.

Does the stopwatch keep my laps if I refresh?

No — laps live in the page’s memory only. If lap times matter (training logs, experiments), copy them out as text or CSV before closing the tab. Your presets, settings and focus totals are different: those are stored in the browser and survive a refresh.

What is the mini window?

On Chrome and Edge, Mini window pops the running timer into a small always-on-top picture-in-picture window, so the countdown stays visible while you work in other apps. It uses a standard browser feature and nothing is installed or uploaded.