Countdown Timer
Set a countdown timer with hours, minutes, and seconds. Quick presets, progress bar, and audio alert when time is up.
About Countdown Timer
The Countdown Timer lets you set a precise duration and count down to zero with a clear visual display and an audible alert. It is perfect for cooking, workouts, study sessions, presentations, or any activity where you need to track remaining time.
Flexible time entry
Enter hours, minutes, and seconds manually for exact durations, or use one of the quick-preset buttons - 1 min, 5 min, 10 min, 15 min, 30 min, or 1 hour - to start immediately with a single click. You can also combine presets with manual entry for full flexibility.
Visual progress bar
A smooth progress bar runs beneath the countdown display, gradually shrinking as time passes. At a glance you can tell roughly how much time is left without reading the numbers, which is especially handy from across a room or during a workout.
Audio alert
When the timer reaches zero it plays a short beep generated with the Web Audio API - no external audio files needed. A "Timer finished!" message also appears on screen with an attention-grabbing animation so you will not miss it even if your volume is low.
Standard controls
Start, Pause, and Reset buttons give you full control. Pause the timer to take a break and resume right where you left off, or reset to start a new countdown. The timer runs in your browser and stays accurate even when the tab is in the background.
Frequently Asked Questions
Does the timer make a sound when it finishes?
Yes. When the countdown reaches zero a short beep plays using the Web Audio API. The sound is generated in your browser so there is nothing to download. Make sure your device volume is turned up and the browser tab is not muted.
Can I set a custom time?
Absolutely. Enter any combination of hours, minutes, and seconds using the input fields, or pick one of the quick presets (1 min, 5 min, 10 min, 15 min, 30 min, 1 hour) to get started in a single click.
Will the timer keep running if I switch tabs?
Yes. The timer uses timestamp-based tracking so it remains accurate even if the browser tab is in the background. The display and progress bar update correctly when you return.
Is there a progress bar?
Yes. A colored progress bar below the time display shrinks as time elapses, giving you a visual sense of how much time remains at a glance.