Utility

Online Stopwatch & Timer - Free, Full Precision

A free stopwatch with laps and a countdown timer with presets and alarm — right in your browser.

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Space Start/StopL LapR Reset

Free Online Stopwatch & Timer

A free online stopwatch and countdown timer that runs entirely in your browser. No sign-up, no download, no ads — ready instantly on desktop and mobile. Use it for work time tracking, Pomodoro study sessions, cooking, sports lap timing, and keeping presentations and meetings on schedule. Precision runs to 1/100 of a second, and timing stays accurate even when you switch browser tabs.

How to Use

Stopwatch

Select the Stopwatch tab at the top. Press Start to begin, Stop to pause, and Resume to continue where you left off. Press Lap during a run to record the elapsed time at that moment in an ordered list. The fastest and slowest laps are highlighted automatically so pace trends stand out at a glance. Keyboard shortcuts: Space, L, and R.

Timer

Select the Timer tab at the top. Enter hours, minutes, and seconds directly — or pick a preset (1, 3, 5, 10, 25, 30 minutes, 1 hour) — and press Start. A circular ring visualizes the countdown, flashing red for the final 10 seconds. At zero, a triple beep sounds (toggle with the volume icon). Pause anytime, resume where you stopped, or reset to time again from the top.

What People Use It For

Studying & Exam Prep

The timer is perfect for the Pomodoro Technique — 25 minutes of focus, 5 minutes of rest, repeated. Tracking total daily study time with the stopwatch is great for motivation, and timed past-paper drills train you to finish within the limit.

Cooking & Kitchen

Pasta and noodle boil times, simmer control, oven countdowns — it works beautifully as a kitchen timer. Just prop your phone up on the counter. Turn the volume up and you\u2019ll hear the finish beep from the next room.

Workouts & Sports

Running laps, swim intervals, rest periods between sets, and work/rest management for HIIT sessions. The lap feature makes time trends easy to compare.

Work & Presentations

Time-box agenda items in meetings, rehearse presentations, and keep discussions on schedule. Measuring how long each task really takes also surfaces clues for improving your workflow.

Naps & Relaxation

A 15-20 minute power nap restores afternoon performance. The timer also paces meditation, breathing practice, and stretching intervals.

How to Run the Pomodoro Technique

The Pomodoro Technique, devised by Italian entrepreneur Francesco Cirillo, is a time management method that sustains focus while boosting productivity. With the timer on this page, you can start right away:
  1. Set the timer to 25 minutes and press Start
  2. Focus on one task until it rings (notifications off, phone face down)
  3. At the beep, start a 5-minute break timer
  4. That is one set (one pomodoro) — repeat four times
  5. After four sets, take a longer 15-30 minute break
Short blocks keep concentration alive, and the forced breaks prevent fatigue from piling up. It is especially effective for studying, writing, programming, design — any work demanding long focus.

Stopwatch or Timer: Which to Use

A stopwatch measures time elapsed; a timer alerts you when a set time runs out. Want to know how long something took? Stopwatch. Want to stop at a set point? Timer.

It runs in the browser, so there's nothing to install — and you can keep working on your PC without reaching for the phone.

How to Use Lap Timing

Laps record split times without stopping the clock — per-lap times mid-run, or per-step times across a work process.

A single total time never tells you where the time went. Split the recording and the bottlenecks reveal themselves when you review.

Timeboxing Your Focus

Focus for a fixed block, rest briefly, repeat — the well-known rhythm for getting work done. The classic split is 25 minutes on, 5 minutes off.

It works because a visible endpoint makes focus easier. "Until it's done" stretches ahead exhaustingly; "just 25 minutes" lowers the barrier to starting.

The right block length is personal. Find the duration that ends just before your focus does.

Closing the tab or letting the device sleep can interrupt timing. For long measurements, keep the screen awake.

Frequently Asked Questions

What is the difference between a stopwatch and a timer?

A stopwatch counts elapsed time up from zero — good for logging study sessions, timing runs, and tracking how long tasks take. A timer counts down from a set time and alerts you at zero — ideal for cooking, naps, the Pomodoro Technique, and anything with a fixed time budget.

How precise is the measurement?

Times display down to 1/100 of a second (10ms) — precise enough for sprint times, lap comparisons, and swim or track practice where sub-second differences matter.

Does timing continue if I switch tabs or turn off the screen?

Yes. The count stays accurate while the tab is in the background, and the correct elapsed or remaining time appears the moment you return. Long study or work sessions are safe.

Does the timer play a sound when it finishes?

When the countdown hits zero, a beep sounds three times. Make sure your browser volume isn’t muted. On smartphones, check the media volume rather than the ringer volume if you hear nothing.

Can I record lap times?

Yes. Press Lap while the stopwatch runs and the elapsed time at that moment is added to an ordered list. The fastest and slowest laps are highlighted, making pace analysis easy — running laps, swim intervals, study or work session splits.

Are there keyboard shortcuts?

Yes. On the stopwatch, Space starts/stops, L records a lap, and R resets. No reaching for the mouse — handy whenever speed matters, like lap timing.

Does it work on phones and tablets?

Verified on major browsers (Safari, Chrome, Firefox, Edge) on iPhone and Android. Add a shortcut to your home screen to launch it like an app in one tap.

Does it work offline?

Once the page has been opened, it keeps timing offline while the browser cache holds. No data use, so it works fine on planes, on the road, or anywhere with poor signal.

How long can it measure?

It supports sessions beyond 24 hours — daily study time tracking, slow braises, or rest-stop intervals on long drives.

Do I need an account or a download?

No. Open the page in your browser and it just works — no personal info, no sign-up, no app install. Completely free with a clean, ad-free design.

Can I use it for the Pomodoro Technique?

Absolutely. Set the timer to 25 minutes to focus, then start a 5-minute break timer at the beep. Take a longer break (15-30 minutes) every four cycles to balance sustained focus with recovery.