Edit with
Configure work and rest periods, set the number of rounds, and train with clear audio cues. Ideal for HIIT, Tabata, circuit training, and any interval-based workout.
An online timer is a simple time-measuring tool that works directly in your browser. CHRONOS offers the fastest and most intuitive online timer, running on every device — desktop, phone, or tablet. No sign-up, no ads, and completely free.
CHRONOS is designed for productivity. Users rely on it for work, study, exercise, cooking, meditation, and sport. Multiple modes are available: stopwatch, countdown, interval timer, and the pomodoro technique. Everything runs in the browser — no app download required.