Stopwatch

Free Online Stopwatch

A fast, accurate online stopwatch you can use right in your browser. Start, stop, and reset with a single click. Record lap times to track splits and intervals. Everything runs locally with millisecond precision — no downloads or signups needed.

How to Use

1. Click “Start” to begin timing.
2. Click “Lap” to record a split time while the stopwatch keeps running.
3. Click “Stop” to pause the timer. Click “Start” again to resume.
4. Click “Reset” to clear the time and all laps.
5. Use “Copy Laps” to copy your lap data to the clipboard.

Features

• Millisecond precision with a smooth updating display.
• Lap recording with split and total times.
• Fastest and slowest lap highlighting (with 3+ laps).
• Copy laps to clipboard for easy sharing.
• 100% browser-based — no data sent to any server.

Common Uses

• Timing workouts, runs, and interval training.
• Cooking and baking timers.
• Tracking productivity with timed work sessions.
• Science experiments and lab timing.