Set your work, rest and rounds, then press Start.
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Your intervals are saved in this browser, ready for your next workout.
About the Interval Timer
This free interval timer runs HIIT, Tabata and circuit workouts. Set your work time, rest time and number of rounds, then press Start — the timer counts down each interval, beeps at every change, and switches automatically between work and rest until you're done. A big, clear display (and a fullscreen mode) makes it easy to read from across the room.
Everything runs in your browser, your settings are saved, and nothing is uploaded.
Made for HIIT and Tabata
- HIIT — set any work/rest split, like 40 seconds on and 20 off
- Tabata — the classic 20 seconds work, 10 seconds rest, 8 rounds
- Circuits and rounds — boxing rounds, EMOM, stretching and more
- Get-ready countdown so you're set before the first round
Features
- Work, rest and rounds you set, plus an optional get-ready countdown
- Beeps on every change, with a countdown on the last seconds
- Big countdown and a fullscreen view for the gym
- Pause, resume and reset any time
- Saved settings — your workout is ready next time
- 100% in your browser — no sign-up, nothing uploaded
How to use it
- Set the intervals — work seconds, rest seconds and how many rounds
- Start — a short get-ready countdown leads into the first work interval
- Follow the beeps — the timer switches between work and rest for you
- Go fullscreen — make the countdown easy to read while you train
