HIIT Timer

This is a HIIT (High-Intensity Interval Training) workout timer that alternates between work and rest periods. • Select a preset workout (Tabata, Classic, etc.) or customize your own by setting work time, rest time, and number of rounds • Click "Start Workout" to begin with a 5-second preparation countdown • Follow the on-screen prompts: "WORK" periods for exercise, "REST" periods for recovery • Audio beeps signal phase changes: long beep for work periods, short beep for rest • The progress bar shows time remaining in current phase • Use "Pause/Resume" to temporarily stop the timer • Click "Stop" to end the workout early and return to setup • Timer displays current round, elapsed time, and total workout duration • Workout completes automatically after all rounds are finished The app runs entirely in your browser - just set your intervals and start exercising!

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