A free interval timer for Japanese walking: 3 minutes fast, 3 minutes easy, 5 rounds, 30 minutes in all. Press Start, and a voice tells you when to speed up and when to ease off. No account, no settings, nothing to install.
How to use the timer
- Warm up with a few minutes of easy walking.
- Press Start. The first interval is fast: walk briskly, so talking takes effort.
- When you hear “Easy now,” slow to a relaxed pace and let your breathing settle.
- Keep going until you hear “Workout complete,” then cool down with a few minutes of easy walking.
Not sure how fast “fast” is? See what counts as fast versus easy walking.
What a web timer can and can't do
- Keep the screen on. Mobile browsers can pause web pages when the phone locks or you switch apps. Where your browser allows it, the timer keeps the screen awake while it runs.
- The clock stays right. The timer is based on the clock, not on counting ticks, so if your browser pauses it, it shows the correct interval as soon as you come back. Cues missed while the page was paused aren't replayed.
- Sound needs the page open. Voice cues play while the page is visible. Turn your volume up, and switch off silent mode if you don't hear them.
- Nothing is saved. The timer doesn't record your walks or send any data.
Frequently asked questions
Is the timer free?
Yes. It is free to use, with no account and no ads.
Can I change the interval lengths?
Not yet. The timer follows the standard method: 3 minutes fast, 3 minutes easy, 5 rounds. If that is too much at first, stop after fewer rounds and build up over a few weeks.
Does it work with my phone locked?
Not reliably. Browsers limit what a web page can do in the background, so keep the page open with the screen on. A native app is needed for cues with the phone locked in your pocket.
Whose voice is it?
The cues are the same recordings used in the NipponWalk iPhone app, generated with the open-source Kokoro text-to-speech model.