Configure work and rest durations, number of rounds, warmup, and cooldown. Includes Tabata and HIIT presets, audio countdown beeps, color-coded phases, progress bar, and a workout summary on completion.
HIIT, Tabata & Custom Workouts
Our free online interval timer is designed for HIIT workouts, Tabata training, and circuit training. Whether you're doing high-intensity interval training at home, following a classic Tabata protocol (20 seconds work, 10 seconds rest), or running through multiple CrossFit stations, this timer keeps you on track with configurable work and rest periods. Set your rounds, add optional warmup and cooldown periods, and get clear audio cues when it's time to switch phases—no app download required.
Runners and walkers use interval timers for structured walk/run programs. Alternate between running and walking segments to build endurance, manage heart rate, or follow a couch-to-5K style plan. Set work intervals for your run periods and rest intervals for recovery walks. The timer's visual progress bar and round indicators make it easy to stay focused without constantly checking your phone—perfect for outdoor runs or treadmill sessions.
Teachers and educators rely on interval timers for classroom activity rotations. Use the timer to switch between stations, centers, or group activities on a predictable schedule. Students can see the countdown and know exactly when to transition. The same format works for study sessions, timed presentations, or any activity that benefits from structured time blocks. No login or registration required—just open the page and start.
In the kitchen, an interval timer helps with cooking tasks that need precise timing—roasting vegetables, flipping pancakes, marinating, or rest periods for dough. Set multiple rounds for recipes that alternate between active cooking and waiting. Use it alongside your main countdown timer for dishes that need different stages or temperatures. It's a simple, free tool that works anywhere you have a browser.
Pomodoro Timer · Classroom Timer · Countdown Timer · Multiple Timers