Online round timer for boxing, MMA, and sports training. Customize rounds, durations, rest times, and sounds in the browser.

Features

Allows you to adjust the number of rounds, round duration, and rest time through the settings menu.

You can enable or disable sound notifications to alert you during the timer operation.

Set a warning signal duration to notify you before each round ends.

Uses background colors to denote different timer states: yellow for preparation, green for active rounds, and red for rest periods.