무료 온라인 스톱워치

Keyboard Shortcuts

• Space · Start / Stop the stopwatch
• L · Record a lap time
• R · Reset the stopwatch

Features

• Millisecond precision with smooth display updates
• Unlimited lap times with best/worst highlighting
• Copy all lap times to clipboard for easy sharing
• Keyboard shortcuts for hands-free operation
• Works offline · no internet needed after loading

How It Works

1. Start timing: Click Start to begin the stopwatch — it tracks elapsed time with millisecond precision.
2. Record laps: Press Lap to record split times without stopping the main timer.
3. Stop and reset: Pause at any time, then resume or reset to zero. Lap records remain until you reset.
4. Copy results: Export your lap times as a list for pasting into documents or spreadsheets.

Why Use This Stopwatch?

A browser-based stopwatch is always available without unlocking your phone or opening a separate app. Millisecond precision is essential for timing code execution, sports drills, cooking tasks, science experiments, and productivity measurements. The lap function lets you record split times during a continuous activity — for example, timing individual stages of a presentation or recording sprint intervals during training. All timing data can be copied for logging in a spreadsheet or analysis document, making this more functional than the basic stopwatch on most phones.

Features

• Millisecond precision — accurate to 10ms or better
• Lap splits — record unlimited split times
• Start/Pause/Resume — full playback control
• Keyboard shortcuts — space to start/stop, L to lap
• Export laps — copy all split times as plain text

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