How to use Belly
Belly is a free boxing round timer and workout rest timer. It runs in your browser, with no account or app install.
Boxing rounds
Choose Rounds, then set the number of rounds, each round’s length, and the rest between rounds. Get ready adds a ten-second opening countdown. Press Play to begin. A bell marks the round start and end; a clapper warns you near the end of a round. Skip advances to the next interval whenever you want.
Workout sets and rests
Choose Sets and set your rest time. Press Play to start the first rest immediately. Belly then shows your set number without running a countdown while you work. Press Start rest when the set is done. Skip during a set moves to the next set without starting a rest.
Controls
Drag the time dials up or down, tap a selected number to type a value, or use a keyboard. Changes to a running countdown take effect immediately while keeping the time already elapsed. The Screen control asks your device to stay awake; Mute silences the bells. Your browser may limit sound and wake behavior when the page is in the background or the device is locked.
Voice is optional. Turn it on and allow microphone access to try phrases such as “Bell, start,” “Bell, pause,” or “Bell, skip.” Voice availability depends on your browser and may pause when another app takes over the microphone. Privacy and analytics.