YOUR ROUTINE. YOUR RHYTHM.

Interval Workout Timer

Create a routine that keeps time for you. Combine work, rest and recovery, repeat rounds and follow a big clear display with optional sound cues. Useful for exercise, practice and timed activities.

Custom circuitsAudio cuesFullscreen timerSession log

Try the example, or start your own project. Download a project to keep your work.

READY WHEN YOU ARE

Load a routine00:00Round 0 of 0

Sound cuesSpeak interval namesKeep screen awake

Cue volume

Built for repeatable routines

This tool provides timing, not a recommended exercise program. Customize the example labels and durations for your own activity. Up to 30 intervals, 50 rounds and eight hours total.

Timing follows elapsed clock time and catches up if the tab was hidden. Device sleep and browser throttling may delay sound or speech; keep the page visible for dependable cues. Optional screen wake lock is browser-dependent. Voice cues use your browser or operating-system speech service.

Processing runs in this browser. Projects are not automatically saved. Site advertising and optional analytics follow the website’s privacy and consent settings.

Using Interval Workout Timer

Build repeating exercise or activity routines with preparation, work, rest and cooldown phases. Use a large timer, optional audio cues, keyboard controls and downloadable session logs.

Choose a ready routine or add your own named intervals.
Adjust work and rest lengths, rounds, preparation and cooldown. Review the full session timeline.
Start the timer, use pause/skip/back controls and choose optional sound or speech cues.
Save your routine as a project and download the completed or interrupted session log.

Example

Try a short demonstration routine to check the controls and audio before using a longer session.

Questions & answers

Will it keep perfect audio timing in the background?

No browser can guarantee uninterrupted cues when a device sleeps or suspends a tab. The displayed position uses elapsed time and catches up on return. Keep the page visible for reliable cues; wake lock is optional where available.

Can I use it for activities other than exercise?

Yes. Name intervals for stretching, music practice, classroom activities or other timed routines. It provides timing rather than exercise or health advice.

Can I customize every interval?

Yes. Each interval has its own title, work time and rest time. Add rounds, round breaks, preparation and cooldown. Session length is capped at eight hours.

Does it save a training history online?

No. Session logs remain in the tab and can be downloaded as CSV or JSON. Save a project to retain the routine configuration.

Can I save and reopen my work?

Yes. Save project downloads a JSON file for this tool. Open project restores it. Projects are not automatically saved; download a copy before leaving.

Is my input uploaded?

Processing runs in your browser without a processing upload. Public pages may include advertising and optional analytics governed by the site privacy and consent settings.