How to Use the Interval Workout & Tabata / HIIT Workout Timer
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1
Set Work Duration (standard Tabata: 20 seconds) and Rest Duration (10 seconds).
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2
Choose total number of rounds (default: 8 rounds = 4 minutes).
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3
Click "Start Workout" to begin full-screen animated countdown with audio cues.
Practical Example & Use Case
Common Real-World Scenario
Performing an intense 4-minute Tabata kettlebell workout where the browser automatically sounds three countdown beeps before each sprint.
Technical Notes & Limitations
Browser Engine Architecture
Uses Web Audio API synthesized tones that play smoothly even on mobile devices.
Frequently Asked Questions
What is the classic Tabata protocol?
Invented by Dr. Izumi Tabata in 1996, it consists of 8 cycles of 20 seconds maximum-intensity effort followed by 10 seconds of rest.