Keep intervals moving without babysitting the clock

Program work, rest, and changeover cues once so your circuits, shifts, or focus blocks stay on pace.

Runs entirely in the browser with loud cues, optional countdowns, and a run mode that hides controls once you get going.

Generic countdowns only cover the first round; after that you’re squinting, tapping reset, and losing tempo when hands should be on a barbell, keyboard, or stick.

This interval timer loops the pattern for you—countdown, work, rest, repeat—so you can hear every handoff, track session length, and keep eyes off the screen.

Tap Start (or any Test button) once to enable audio in your browser.

No accounts. Runs locally. No nonsense.

Timing

Typical hockey shift: 40-50s. Pomodoro: 25m (1500s).

Options

Sound & volume

Plays once when the first interval begins.

Status

Status
Idle
Intervals completed
0
Current interval
00:45
Session remaining
Unlimited

What this timer keeps running

Intervals pulse automatically so you can work, breathe, and reset without tapping anything. Each loop tracks current interval, total session time, and plays distinct sounds for start, changeovers, and wrap-up.

  • HIIT circuits, strength supersets, and class drills that need clear changeovers.
  • Hockey or futsal shifts where benches need a loud horn to rotate bodies.
  • Pomodoro or rehab sessions that depend on consistent pacing without screen-gazing.

How to use it well

  • Enter the real interval you train with—even 43 seconds beats the “default 60” trap.
  • Add a countdown runway so you can drop the device and get into position before the first beep.
  • Enable session limits to protect cool-down time instead of letting the timer run forever.
  • Test sounds once in your actual space; swap to Sports mode or another cue if the room is loud.
  • Leave the tab open in Run mode so the big “Now vs Next” panel is visible at a glance.

Common timer mistakes

  • Stacking work blocks back-to-back with rest so short nobody can reset equipment.
  • Using gentle chimes in a gym full of barbells—nobody hears them.
  • Programming ten rounds with zero thought for warm-up or cool-down padding.
  • Building a neat spreadsheet timer but forgetting you won’t touch the screen mid-set.
  • Letting the phone lock and wondering why the cues paused.

Quick answers

Why don’t I hear sounds right away?

Browsers block audio until you interact. Tap Start or a Test button once to unlock playback.

Will it keep running if my screen locks?

Most mobile browsers pause timers when the screen sleeps. Use the keep-awake banner or leave the screen on.

Can I store multiple presets?

For now, the timer remembers the last setup per device. Duplicate tabs if you need variations.

What’s the point of Setup vs Run mode?

Setup exposes every control. Run mode hides them so you don’t nudge values mid-session and only the key readouts remain.

Does it work offline?

Yes—once loaded, it runs locally. Load the page before airplane mode and you’re good.

How accurate are the cues?

Browser timers are accurate for workouts and focus blocks, but skip them for officiated sports or medical timing.

Related tools

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Need more interval ideas?

These guides are optional deep dives once your timer is dialled in.