Stopwatch.Online

Stopwatch .Online

Free stopwatch online to track time with absolute precision. Our easy-to-use digital timer features lap recording and countdown capabilities, making it the perfect tool for sports, study sessions, or workplace productivity—accessible directly in your browser with no downloads.

Click a button above to create your first timer. You can add up to 8 total.

Stopwatch.online gives you fast, accurate, and easy-to-use timing tools — all in your browser. Whether you need a simple stopwatch, a precise countdown, or a full Tabata/HIIT interval timer, everything runs instantly without downloads or accounts. You can even open multiple timers at the same time for workouts, study sessions, cooking, or productivity. Reliable, distraction-free, and always ready when you need it.

Why Choose Our Stopwatch Online Tool?

3 Timer Types
Stopwatch, Countdown, and Tabata interval training timers - all in one place
Background Timing
Timers continue running even when navigating away or switching tabs
Live Tab Updates
See real-time timer values in navigation tabs with smooth 60fps updates
Tabata Interval Training
Customizable work/rest/prep cycles with audio cues and phase tracking
Audio & Haptic Feedback
Progressive countdown beeps and mobile vibration for timer events
Full Screen Mode
Distraction-free timing with customizable motivational backgrounds
Millisecond Precision
Accurate timing down to 10 milliseconds for professional needs
Export Results
Export lap times in CSV, JSON, or TXT formats for analysis
Auto-Save
All timer states and settings persist automatically across sessions

Best Free Stopwatch Online with Tabata Timer

Our stopwatch online tool provides the most comprehensive digital timing solution available on the web. Choose from three timer types: traditional Stopwatch for lap timing, Countdown for time-based challenges, and Tabata for high-intensity interval training. With background timing technology, your timers continue running even when you navigate away or switch tabs - perfect for multitasking athletes and professionals.

HIIT & Tabata Interval Training

Take your workouts to the next level with our Tabata timer featuring customizable work/rest/prep intervals. Progressive audio cues during countdown (increasing volume in last 3 seconds) and mobile vibration alerts keep you focused on your workout. Perfect for CrossFit, HIIT, circuit training, and any interval-based exercise. Run up to 8 Tabata timers simultaneously for complex workout routines.

Smart State Persistence

Never lose your timing progress again. Our advanced state persistence system automatically saves all timer configurations, current states, and your preferences across browser sessions. Live tab updates show real-time values in navigation tabs at 60 frames per second, so you always know your timer status at a glance. Full-screen mode with customizable motivational backgrounds creates a distraction-free timing environment.

Frequently Asked Questions

Click the play button to start timing, pause to stop, and reset to clear. You can record lap times while running by clicking the lap button or pressing 'L' on your keyboard. Use Space bar to start/stop and 'R' to reset when stopped.