Set Timer
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Label
Duration
Sound
Alarm Sound
Timer Name
Key Features
Precision Countdown
Accurate to the second with a clear, full-screen display — perfect for classrooms, meetings, and presentations.
12 Alarm Sounds
Choose from alert, bell, rooster, siren, nuclear, and more. Test each sound before starting your timer.
Study Mode (Multi-Segment)
Set up multiple timed segments with custom labels and sounds — ideal for Pomodoro, interval training, and workflow routines.
Quick Presets
One-click presets from 15 seconds to 2 hours. Start timing instantly without typing.
Fullscreen & Dark Mode
Toggle fullscreen for classroom projection or dark mode for comfortable nighttime use.
30 Languages
Available in 30 languages with localized timer settings, alarm names, and interface text.
FAQ
Is Timer Countdown really free?
Yes — completely free. No registration, no subscription, no hidden fees. Just open the page and start your timer.
How do I use the countdown timer?
Set your desired hours, minutes, and seconds (or pick a preset), choose an alarm sound, and press Start. The timer counts down and plays your chosen sound when time is up.
What is Study Mode?
Study Mode lets you create multiple timed segments that run one after another — for example, 25 minutes of study followed by a 5-minute break, on repeat. Great for Pomodoro technique, workout intervals, or any sequential timing.
What alarm sounds are available?
12 built-in sounds: Silent, Alert, Bell, Rooster, Siren, Nuclear, Ezan, Aliens, Rain, Bomb, Mystic, Bell Tower, and White Noise. All generated in your browser — no downloads needed.
Does the timer work offline?
Yes — once the page is loaded, the countdown runs entirely in your browser. No internet connection is needed to continue timing.
Can I use Timer Countdown in fullscreen?
Absolutely. Click the fullscreen button or press F to enter fullscreen mode — perfect for projecting the timer in classrooms or during presentations.