Interval Timer

Run timed stages with a repeat count for exercise, practice or presentations.

Processed on your device

Ready when you are.

00:00

Keep this tab open. No sound or background notification is requested; the completion notice appears here.

How to use this tool

  1. Enter a stage name and seconds on each line, then choose the number of rounds.
  2. Start, pause or reset and follow the current stage label.

Things to know

  • Browser suspension can delay on-screen updates; elapsed stages are reconciled when the page resumes. Keep the tab open.
  • Stage text: 4,000 characters; 1-20 stages, each 1-3,600 seconds, repeated 1-100 rounds. At most 2,000 stages; labels use their first 100 characters. One timer interval is cleaned up on pause/reset/unmount.