Advanced stopwatch and countdown timer for all your timing needs
Accurate to milliseconds for professional timing needs. Perfect for sports, scientific experiments, and performance testing.
Choose from multiple alarm sounds or silent mode. Great for cooking, workouts, or meditation sessions.
Generate and share countdown links for synchronized timing across devices. Ideal for team activities and events.
Go fullscreen for better visibility during presentations or when you need to focus on the timer.
Track and compare lap times for interval training, racing, or any activity requiring split times.
Works perfectly on all devices from smartphones to desktop computers.
TimeMaster Pro is a free, full-featured online stopwatch and countdown timer designed for accuracy and ease of use. Our advanced timing tool is perfect for athletes tracking workout intervals, chefs monitoring cooking times, presenters keeping to schedule, students managing study sessions, and professionals needing precise time measurement.
The stopwatch features millisecond precision, lap time recording, and a clean interface that works on any device. The countdown timer offers customizable durations up to 99 hours, multiple alarm sound options, and fullscreen mode for better visibility. All functionality works completely in your browser with no downloads required.
Whether you need to time a speech, track your running splits, remind yourself to take breaks, or coordinate a team activity, TimeMaster Pro provides all the timing tools you need in one convenient web application. Bookmark it for quick access to reliable timing whenever you need it.