Countdown Timer

A countdown timer helps manage time-boxed activities — cooking, workouts, presentations, meetings, study sessions, games, and exams. The browser-based timer runs accurately without installation and sounds an alert when the countdown reaches zero. How to set a timer: 1. Enter hours, minutes, and seconds using the number inputs or the preset quick-set buttons (1 min, 5 min, 10 min, 25 min, 30 min, 1 hour). 2. Click Start. The countdown begins displaying time remaining in large digits. 3. Use Pause to temporarily stop the countdown and Resume to continue from where it paused. 4. Click Reset to return to the original set time. 5. When the timer reaches zero, an audio alert sounds and a visual notification appears. Multiple timers: Add additional timer instances to run several countdowns simultaneously — useful for cooking multiple dishes, tracking multiple exam sections, or managing parallel tasks with different durations. Full-screen mode: Expands the timer display to fill the screen — useful during presentations, cooking (viewable from across the room), gym workouts, or classroom use. Press Escape to exit full-screen. Custom alarm sound: Choose from built-in alert sounds or upload a custom audio file. Set the number of times the alarm repeats (1 to 5). Browser tab title update: The remaining time is shown in the browser tab title so you can monitor the timer from other tabs without switching back.