Countdown Timer
Set a custom countdown, pick a quick preset, and get alerted when time runs out — all in your browser.
Ready
Quick Presets
Custom Duration
The countdown runs entirely in your browser. Alarms use the Web Audio API. No data is sent, tracked, or stored on any server.
Whether you're timing a presentation, managing a workout interval, tracking a cooking recipe, or setting a study break, a reliable countdown timer is an everyday essential. Our free Countdown Timer gives you precise control over hours, minutes, and seconds with a clean, full-screen display that's easy to read from across the room. Six quick presets (1, 3, 5, 10, 15, and 30 minutes) let you start common timers instantly, while the custom duration inputs support up to 99 hours. An animated progress ring depletes as time runs out, and when it reaches zero, a triple-beep audio alert fires and the display pulses red. Everything runs client-side — no accounts, no downloads, no interruptions.
How to Use the Countdown Timer
- Pick a preset or set a custom time — Click any quick preset button, or enter your desired hours, minutes, and seconds manually.
- Start the countdown — Press the large Start button. The timer begins counting down with the progress ring depleting in real time.
- Pause or reset anytime — Press Pause to freeze the countdown, or Reset to return to the set duration.
- Get alerted — When the countdown hits 00:00, a triple-beep chime plays and the display pulses red to signal the end.
Key Features
- 6 Quick Presets
1, 3, 5, 10, 15, and 30 minutes — one click to start common timers.
- Custom Duration
Set any combination of hours (0–99), minutes (0–59), and seconds (0–59).
- Animated Progress Ring
SVG ring depletes clockwise as time runs out — see remaining time at a glance.
- Audio Alert
Triple-beep chime via Web Audio API when the timer finishes — works even if the tab is in the background.
- Visual "Time Up" Signal
Display turns red and pulses when the countdown reaches zero — impossible to miss.
- 100% Client-Side
No network requests, no accounts. The timer runs offline once loaded.
Frequently Asked Questions
Does the timer work if I switch tabs?
setInterval at 1-second intervals which continues even when the tab is not active. The alarm will sound
at the correct time regardless of tab focus.