Counts up · for splits & elapsed time

Online stopwatch

Ready
00:00:00 .00 Tap to start
00:00:00
Space Start / Resume | P Pause | L Lap | R Reset | C Copy link | Esc Exit | F Fullscreen | D Display | S Sleep
Stopwatch options
Quick look

Stopwatch data

TT Lap Time Elapsed Time Current Time
Embed this stopwatch

A free online stopwatch with lap timing, instant export, and zero setup — just press start.

100% free, no sign-up Your data stays in your browser Export laps to Excel & CSV Full keyboard control

Online stopwatch

Free online stopwatch for accurate time tracking

This online stopwatch measures elapsed time, controls laps, and manages timing data in your browser — no download, no account. Built for everyday tasks and professional use on desktop and mobile.

Stopwatch vs timer

A stopwatch counts up from zero. A timer counts down. Stay here for splits; open the Online Timer, Pomodoro, Reaction Time, or Time Card.

Local data & privacy

Laps stay in this browser — never uploaded, never tied to an account. Export or delete whenever you choose.

How to use this online stopwatch

  1. Start Press Start (or Space / tap the face) to begin counting up.
  2. Lap Press Lap for each split while running; pause or reset when done.
  3. Keep Export laps, compare a saved session, or share a result.

Main stopwatch features

  • Precise time measurement with stable real-time updates
  • Start, pause, resume, reset — face tap and keyboard shortcuts
  • Lap strip, stats, tempo chart, and flexible display options
  • Activity presets (Running, Swimming, Lab, Presentation, HIIT)
  • Export laps to CSV or Excel (XLSX)
  • Save, restore, and compare sessions locally
  • Share a result card or link; sync start with a countdown link
  • Display, Sleep, and Fullscreen modes

Stopwatches by use

Presets live on this page (not separate tools). Lab and Presentation are in-app only. Guides:

Looking for the branded home version of this tool? Visit Cronometro Online.

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Online stopwatch - Common questions & Answers

An online stopwatch is a browser-based timing tool that measures elapsed time accurately without requiring any installation or software download.
A stopwatch counts up from zero to measure how long something takes and records laps. A timer counts down from a set duration and alerts you when time is up. Use this page for elapsed time; open the Online Timer for countdowns.
Yes. Click Lap while running to record each split — every lap is listed in a table with its own time and running total, plotted on a lap chart, and summarized with your fastest, slowest, average, and total lap time so you can spot patterns at a glance.
Yes. You can export recorded lap data to CSV or Excel (XLSX) formats for further analysis or record keeping.
All stopwatch and lap data is stored locally in your browser using local storage and is never sent to any external server.
Yes. This online stopwatch is completely free and can be used without registration or account creation.
Yes — Space starts or resumes, P pauses, L records a lap, R resets, and F toggles fullscreen. This makes it easy to keep both hands off the mouse during an active session, for example while exercising.
Yes. Every completed session (at least a few seconds long) is logged to your session history, and the tool automatically highlights your personal best duration and lap count, plus a running summary of today's sessions.
Yes. Use the "Run together" button to generate a link with a 10-second countdown built in — anyone who opens it (including you, in another tab) starts at the identical moment, useful for timing the same activity from two devices.
Yes. The Share Result Card button generates a downloadable image summarizing your time and lap stats, ready to post or send without a screenshot.