Workout • Focus • Classroom

Interval Timer Builder

Create a custom work/rest interval timer for HIIT, Tabata, boxing rounds, classroom rotations, study sprints, and practice sessions. Everything runs in your browser.

Build interval timerTabata Timer
Work/rest roundsSet work seconds, rest seconds, and number of rounds.
Local and privateNo account, no server, and no saved data unless you choose local settings.
Mobile friendlyLarge readable display for workouts, classrooms, and desk sessions.
00:45
Work•Round 1

Best uses for this interval timer

Use this interval builder for HIIT workouts, boxing rounds, EMOM practice, classroom stations, breathing cycles, stretching routines, music practice, study sprints, and meeting agendas.