Online Timer, Countdown & Stopwatch

Yes. The timer uses wall-clock time (Date.now) rather than animation frames, so it stays accurate even if you switch tabs. The audio alarm will play when the countdown reaches zero, as long as the tab is still open.

Yes. The timer and Pomodoro modes play an audio beep via the Web Audio API when a phase ends. No external audio files are loaded. Make sure your device volume is up and your browser allows audio playback.

The Pomodoro Technique is a time management method where you work in focused 25-minute blocks (called pomodoros) separated by 5-minute short breaks. After four pomodoros, you take a longer 15-minute break. This cycle helps maintain focus and prevent burnout.

Yes. Before starting, you can change the work duration (default 25 minutes), short break (default 5 minutes), and long break (default 15 minutes) to any values that suit your workflow. The settings are available when the timer is stopped.

Yes. While the stopwatch is running, click the Lap button to record split times. Each lap shows the individual lap duration and the cumulative total time. Laps are displayed in a scrollable table.

No. This tool runs entirely in your browser. No timing data, lap records, or usage information is sent anywhere. The tool works offline once the page has loaded.

The timer uses Date.now() for wall-clock accuracy, updating every 50 milliseconds. The stopwatch updates every 16ms for smooth millisecond display. Both methods compensate for browser throttling and tab-switching delays.

Yes. The countdown timer supports up to 99 hours, 59 minutes, and 59 seconds. Use the hour, minute, and second inputs to set any duration, or choose from the quick presets for common intervals.