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Online Stopwatch

Free precision timer with milliseconds, lap times & full-screen mode. No download required.

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Stopwatch Features

⏱️ Millisecond Precision

Accurate timing down to the millisecond for professional-grade time tracking. Perfect for sports and precise measurements.

📋 Lap Time Recording

Record unlimited lap times without stopping the main timer. Track split times for running or interval training.

🖥️ Full Screen Mode

Distraction-free timing with our full-screen mode. Perfect for presentations, classrooms, or maximum visibility.

⌨️ Keyboard Shortcuts

Control the stopwatch hands-free. Spacebar for Start/Stop, L for Lap, R for Reset, F for Full Screen.

📱 Mobile Responsive

Works perfectly on any device - smartphones, tablets, and desktop computers. No app download required.

💾 Export Lap Data

Easily export your recorded lap times into a CSV format to analyze your performance in Excel or Google Sheets.

How to Use the Online Stopwatch

1

Start Timing

Click the Start button or press Spacebar to begin the stopwatch.

2

Record Laps

Click Lap or press L to record split times while the timer runs.

3

Stop & Resume

Click Stop or press Spacebar to pause. Click again to resume.

4

Reset Timer

Click Reset or press R to clear all times and start fresh.

Popular Uses for Online Stopwatch

🏃 Workout & Fitness Timer

Track your exercise intervals, rest periods, and total workout time. Perfect for HIIT training, circuit workouts, and gym sessions.

🍳 Cooking Timer

Time your recipes perfectly. Never overcook or undercook again with precise timing for baking, boiling, and grilling.

📚 Study & Pomodoro Timer

Boost productivity with timed study sessions. Use the lap feature to track multiple Pomodoro intervals.

🎮 Gaming Speedruns

Track your speedrun attempts with millisecond precision. Record split times for each level or checkpoint.

Keyboard Shortcuts

KeyAction
SpaceStart / Pause the stopwatch
LRecord lap time
RReset stopwatch
FToggle full screen mode

Frequently Asked Questions

How do I use the online stopwatch?
Simply click the Start button or press Spacebar to begin timing. Click Pause or press Spacebar again to stop. Use the Lap button to record split times, and Reset to clear the timer.
Is this stopwatch accurate to milliseconds?
Yes, our online stopwatch provides millisecond precision timing, displaying time in hours:minutes:seconds.milliseconds format. The timer uses high-resolution JavaScript timing for maximum accuracy.
Can I use keyboard shortcuts?
Yes! Press Spacebar to Start/Stop, L for Lap, R for Reset, and F for Full Screen. These shortcuts work even in full-screen mode for hands-free operation.
Does the stopwatch work offline?
Once loaded, the stopwatch works entirely in your browser without needing a continuous internet connection.

About Online Stopwatches

A stopwatch is a timepiece designed to measure the amount of time elapsed from a particular time when it is activated to the time when the piece is deactivated. Our online stopwatch brings this functionality to your web browser with enhanced features like lap timing and millisecond precision.

Online stopwatches offer several advantages over physical devices: they are always accessible on any device with a web browser, require no batteries, are free to use, and feature easy data export capabilities allowing you to save your timing data effortlessly.

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