Will my screen stay awake?

Enable the wake-lock toggle to keep the display on during workouts.

Yes—use the preset manager to store Tabata, EMOM, or custom intervals.

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Interval / HIIT Timer

Set warmup, work/rest, rounds & sets. Choose alarm behavior (once / until stopped), pick a sporty sound and optional voice cues. Runs entirely in your browser.

Sound

Type Volume

Alarm

Voice cues

Voice Available voices depend on your device and browser. For a US male, pick an en-US voice labelled male if present.

Warmup (s)

Work (s)

Rest (s)

Rounds

Sets

Set rest (s)

Warm up

00:00

0.0s

Round 0 / 0 • Set 0 / 0

Keep screen on

Help & FAQ — Interval / HIIT Timer

How to use

Set warmup, work, rest, and cooldown durations.
Choose the number of rounds, sets, and voice/sound options.
Start the timer and keep the tab active (wake lock supported) until finished.

Use cases

Run HIIT workout intervals with rest periods.
Set repeating timers for study blocks.

Tips & FAQs

Will my screen stay awake?: Enable the wake-lock toggle to keep the display on during workouts.
Can I save presets?: Yes—use the preset manager to store Tabata, EMOM, or custom intervals.

Formats & limits

Requires audio output for cues
Keep the browser tab active to ensure accurate timing
Works best on modern browsers with the Web Audio API

Privacy

All configuration stays in your browser; nothing is uploaded.

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Updated

15 October 2025