Highlights
- Automatic flow for work/rest, rounds, and sets.
- Analog ring + digital remaining time, always visible.
- Count-in, warm-up, and cooldown supported.
- Shareable settings URL, notifications, fullscreen.
How to use
- Pick a preset or enter seconds (Work is required).
- Press Start. Use Pause to stop temporarily.
- Use Next to skip forward. Prev works only while paused.
- Copy the settings link to share settings only (not the running state).
Interval Timer
Note: Prev is available only while paused.
Share settings via URL (the running state is not shared).
Settings
Background mode may restrict timer updates.
If you cannot hear sound, press Start once to enable audio.
Interval schedules for HIIT, circuits, and drill blocks
Use this timer when everyone follows the same work/rest plan. It supports count-in, warm-up, cooldown, rounds, sets, rest between sets, sound, and notifications, so you can stage one complete session before starting. Keep the device awake during important workouts because background tabs and locked screens may limit updates or audio.
Good fits
- Build one repeatable schedule with work, rest, rounds, and sets.
- Preview the timeline before a class or training block starts.
- Share the settings URL when teammates need the same interval plan.
What to double-check
- Warm-up, cooldown, and between-set rest settings.
- Alert sound and notification permission on the device you will actually use.
- Whether the screen will stay awake for the whole session.
FAQ
Will it drift in the background?
Background or screen lock may restrict updates or audio. It is not suited for guaranteed alarm use.
Does the share URL include the current state?
No. The URL only includes settings, not the running state.
Can I add warm-up, cooldown, or rest between sets?
Yes. Advanced settings cover count-in, warm-up, cooldown, between-set rest, and optional rest after the last round.
Can I change rounds and work/rest lengths without reopening the page?
Yes. Update the settings panel and restart the schedule so the next run uses one clean interval plan.