GClocks

Stopwatch

Precise stopwatch with lap times.

Ready

00:00:00.00

Current lap 00:00.00

Appearance

Skin

Settings

Laps

No laps yet. Start the stopwatch and tap "Lap" to record one.

Saved sessions

Save a finished run to compare it later, share it, or export it as CSV.

No saved sessions yet. Finish a run and tap "Save" to keep it here.

Embed this stopwatch

A lightweight stopwatch widget. Paste the iframe on any site. Preview updates live.

Keyboard shortcuts

Space
Start / pause
L
Record lap
R
Reset
F
Toggle fullscreen
?
Show shortcuts
Esc
Close dialog

Online Stopwatch

A stopwatch built for real laps, real comparisons

Time anything down to the centisecond, run several timers in parallel, and save, compare, or share the results - all in your browser, with no installs and no sign-in.

How it works

  1. 01

    Start timing

    Tap Start to begin, Lap to record a split without stopping the clock, and Pause whenever you need to.

  2. 02

    Track more than one run

    Add extra timers from the tab bar to time several things at once - each keeps its own laps and keeps running in the background.

  3. 03

    Save, compare, and share

    Save a finished run, compare it lap by lap against a new one, export it as CSV, or share a read-only link.

Why use an online stopwatch instead of your phone's?

Most phone stopwatches only track one run at a time and lose everything when you close the app. This one keeps multiple timers running in parallel, restores your laps after a refresh, and lets you save, compare, and share results - without installing anything.

Everything in one stopwatch

  • Precise laps

    Lap and split times down to the centisecond, with best/average/worst stats and a tempo sparkline.

  • Multiple timers

    Run several stopwatches in parallel, each with its own laps - switch between them anytime.

  • Save & compare

    Save a finished run and compare it lap by lap against a new one to see exactly where you gained or lost time.

  • Share a result

    Generate a link that shows your saved laps to anyone - no account or server storage needed.

  • Embed anywhere

    Generate a ready-to-paste iframe and drop a live stopwatch widget on your own website.

  • Works everywhere

    No install, no account. Keeps running across reloads and works on any modern browser or phone.

Frequently asked questions

Yes, it's completely free, with no account or sign-up required.

Yes. Add timers from the tab bar above the stage - each one runs independently and keeps its own laps, even while you're viewing another.

No. The stopwatch keeps running using your device's clock, so your elapsed time and laps are restored exactly where you left off.

Save a finished run from the "Saved sessions" panel, then tap Compare next to it to see a lap-by-lap difference against your current run.

Yes. The Share button on a saved session copies a link that opens a read-only view of that result - no account or server storage is used.

Yes. The "Embed this stopwatch" panel generates a ready-to-paste iframe widget, with a live preview.