Free browser timer
Tabata Timer for 20/10 Intervals
A fast 20/10 interval timer for Tabata workouts, HIIT circuits, bodyweight rounds, and conditioning finishers. Built for home workout users, coaches, athletes, and HIIT classes, with no account required to start.
People searching for a Tabata timer want a loud, simple 20/10 interval clock they can start quickly during a workout.
Why this tabata timer?
- Classic 20/10 Tabata structure
- Large mobile-friendly countdown
- Browser vibration and beep cues when available
Round 1 of 8
Work
Tabata preset · 16 stages · 4:00 total
0% complete
Zen mode keeps controls thumb-friendly and uses the full phone screen with dark/light focus themes.
Round 1
Work
0:20
Round 1
Rest
0:10
Round 2
Work
0:20
Round 2
Rest
0:10
Round 3
Work
0:20
Round 3
Rest
0:10
Round 4
Work
0:20
Round 4
Rest
0:10
Local timer history
Keep lightweight session receipts in this browser, then export them when you are ready to turn timers into time logs.
How to use this timer
- 1
Set up your movement
Choose one safe exercise or machine before starting because Tabata moves quickly.
- 2
Start the 20-second work round
Move hard during the work interval while keeping form clean.
- 3
Recover for 10 seconds
Use the rest cue to breathe, reset your stance, and prepare for the next round.
- 4
Complete all 8 rounds
A classic Tabata is 8 work/rest rounds, then you can save or export the completion record.
Best for
Pro tips
- Use lower-skill movements if fatigue could make form sloppy.
- Place your phone where the countdown is visible before the set begins.
- For longer circuits, use the interval timer instead of forcing every workout into 20/10.
Use this timer for
Direct answer
What is this tabata timer best for?
A Tabata timer is a specific interval timer for the classic 20 seconds work, 10 seconds rest, 8-round structure. FlexTimer makes that format immediately startable in the browser with large mobile-friendly cues, local workout history, and CSV export after the set.
Reviewed and updated 2026-05-25 for browser timer UX, indexable content depth, and structured data clarity.
Recommended timer formats
| Format | Timing | Use case |
|---|---|---|
| Classic Tabata | 20 sec work / 10 sec rest × 8 | Four-minute conditioning sets |
| Beginner HIIT | 20 sec work / 20 sec rest | Lower-pressure technique practice |
| Finisher | 20 sec work / 10 sec rest × 4 | Short end-of-workout bursts |
Which timer should I use?
Tabata timer
Best for: Fixed 20/10 HIIT
Use when the workout specifically calls for classic Tabata rounds.
Interval timer
Best for: Flexible work/rest ratios
Use when 20/10 is too aggressive or too rigid.
Workout timer
Best for: Full training sessions
Use for circuits, rests, warmups, and cooldowns beyond one Tabata set.
Safety note
Choose exercises you can perform safely under fatigue; this timer is a clock, not medical or training advice.
Frequently asked questions
What is the Tabata timer format?
The classic Tabata format is 20 seconds of hard work, 10 seconds of rest, repeated for 8 rounds.
How long is a Tabata workout?
One classic Tabata set is 4 minutes total. You can add warmups, cooldowns, or multiple sets if your workout calls for it.
Can I use this Tabata timer on my phone?
Yes. The countdown is designed to be large and mobile-friendly, with browser audio or vibration cues when your device allows them.
Is Tabata the same as any HIIT interval?
No. Tabata usually means 20 seconds of work and 10 seconds of rest for 8 rounds. HIIT is broader and can use many different interval lengths.
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