High-Precision Stopwatch & Interval Workout Timer
Millisecond lap tracker, voice time announcer, customizable HIIT intervals, and CSV lap export.
Instant Launch in Browser
Zero installation required • Private client-side execution
Core Capabilities
⏱️ Millisecond Lap Tracker
Record split times with highest accuracy browser clock APIs.
🗣️ Voice Time Announcer
Audible spoken alerts on lap completions and interval rounds.
🏋️ HIIT Tabata Interval Mode
Custom work/rest workout timer with loud audio chimes.
How It Works
Choose Mode
Toggle between Stopwatch, Countdown, or HIIT Interval Timer.
Start Timer
Press Spacebar or click Start to initiate precision tracking.
Export CSV Laps
Download structured lap times for sports performance analysis.
Frequently Asked Questions
Q: Can I control it with keyboard?
Yes! Space starts/stops the timer and 'L' marks a lap.
Q: Does it run in background tabs?
Yes, Web Workers maintain accurate timing without browser throttle.
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