Interval Workout Timer for HIIT and Circuits
Set your work and rest times, see the total, then follow one big countdown with beeps.
Your browser is not letting this page save. The timer works, but your workouts and history will be lost when you close the page.
Your saved workouts could not be read, so the app started fresh.
End the workout now?
Workout done!
Coming up
1 Pick a workout
Start from one of these and change anything below.
My workouts
None saved yet. Press “Save to My workouts” to keep a workout here.
2 Your workout
3 Start
Total 0:00
See every step
Sound and screen
Workouts done
Nothing yet. Each workout you finish (or end after at least a minute) is added here.
Questions
Why is my Tabata 3:50 and not 4:00?
The rest after the last round of each set is left out, because the set ends there (the rest between sets, the cool-down or the end follows). 8 rounds of 20 seconds and 7 rests of 10 seconds make 3:50. Press See every step to check any workout step by step.
Will it beep if my phone locks?
A locked phone pauses web pages, so beeps cannot play until you unlock it. That is why the app keeps the screen on during a workout (switch it off under Sound and screen). The timer works from the clock, so when you come back it shows the right step and time.
I do not hear any beeps.
Browsers only play sound after you tap the page; pressing Start workout does that. After a reload, tap Turn sound on. On an iPhone the silent switch also mutes web pages. Press Test the sound to check the volume.
How do I time an EMOM or AMRAP?
EMOM (every minute on the minute): tap EMOM 10, or set Work to 1:00, Rest to 0 and Rounds to the minutes you want; it beeps at the start of each minute. AMRAP (as many rounds as possible): set Work to the total time, for example 12:00, and Rounds to 1.
Is it private? Does it work offline?
Your workouts and history stay in this browser on this device: no account, and your data is never sent anywhere. Once loaded, the app works with no connection, and you can add it to your home screen.