Free Online Tabata Timer
High-intensity interval training with customizable work and rest periods — the classic Tabata protocol and beyond.
Workout Complete!
You completed rounds ( total work time)
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How to Use the Tabata Timer
The Tabata protocol is one of the most effective high-intensity interval training (HIIT) methods. Created by Dr. Izumi Tabata in 1996, it alternates between all-out effort and short rest periods for maximum results in minimum time.
The classic protocol: 20 seconds of maximum-intensity work followed by 10 seconds of rest, repeated for 8 rounds (4 minutes total). A 3-second "Get Ready" countdown plays before the first work interval so you can prepare.
Customization: Adjust work (5–300s), rest (5–300s), and rounds (1–30) to match your fitness level and goals. Try 30/15 for endurance, 10/20 for recovery-focused sessions, or 40/20 for extended intervals.
During your workout: Color-coded phase labels (red for Work, green for Rest) and a progress ring show your position. The round badge tracks your progress through all rounds. No rest plays after the final work interval — the workout ends with a completion alarm.
Controls: Space to start or pause, R to reset, Escape to stop. All settings save automatically and persist across sessions.
Frequently Asked Questions
- What is the Tabata protocol?
- Tabata is a high-intensity interval training method: 20 seconds of all-out work followed by 10 seconds of rest, repeated for 8 rounds (4 minutes total). It was developed by Dr. Izumi Tabata in 1996.
- Can I customize the work and rest times?
- Yes — work and rest durations are adjustable from 5 to 300 seconds each, and rounds from 1 to 30. The classic protocol is 20s work / 10s rest x 8 rounds.
- Is Tabata suitable for beginners?
- Tabata is intense by design. Beginners should start with lower-intensity exercises, longer rest periods, and fewer rounds. Always consult a physician before starting any new exercise program.
- What exercises work best with Tabata?
- Bodyweight exercises (squats, burpees, push-ups, mountain climbers), cycling, rowing, and jump rope all work well. Choose exercises you can perform at high intensity with good form.
Related Tools
Web vs App
| Feature | Web (Free) | App (Freemium) |
|---|---|---|
| Timer types | Countdown, Stopwatch | Countdown, Count Up, Stopwatch, Counter |
| Custom workflows | Fixed per tool | Visual block builder |
| Templates | 4 free web tools | 30 customizable templates |
| Voice prompts | Browser TTS | Premium voice prompts |
| Offline support | Requires browser | Fully offline |
| Background execution | Tab must stay open | Lock screen notifications |
| Cloud backup | No | Google Drive sync (Pro) |