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Round 1/4
Phases
Repeats
sec
sec
Chrono Timer / Side page
Build custom timed sequences for HIIT, Tabata, circuit training or any multi-phase routine. Name each phase, set its length, and the timer walks through the whole sequence with an alarm between rounds.
Use hours, minutes and seconds — or tap a quick preset below the display.
Hit play or press Space. The countdown keeps running if you switch tabs.
When time is up the alarm rings, with an optional notification and confetti.
Yes — Chrono Timer on iautre.com is completely free, with no ads, no account and no sign-up. Themes, alarms, tasks and habits are included.
The countdown keeps an absolute deadline, so it still finishes if the tab is hidden. Browsers throttle background timers, so the alarm can land up to about a minute late. Turn on notifications for a reliable on-screen alert — the native app schedules a system alarm instead.
Yes. Chrono Timer is a Progressive Web App — after your first visit it works fully offline, and you can install it as a standalone app on desktop or mobile.
Yes. Besides the five built-in sounds, you can upload any MP3 or WAV file, control the volume, and set fade-in, fade-out and looping.
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