Countdown Timer
Set a timer in one click and hear an alarm when it's done — or count down to a big day.
- Your data never leaves your device
- 100% free
- No sign-up
- Works offline after first load
How to set a countdown timer
- Pick a preset or type hours, minutes and seconds.
- Press Start — the ring shows the time left and when it ends.
- When the alarm rings, stop it or restart; or count down to a date instead.
About Countdown Timer
An online countdown timer with an alarm. It works in your browser, so it is instant and private.
Everything you set is remembered on your device, and the result can be copied, shared or printed. The page works offline after the first visit.
Good for
- Cooking, study and exam timing
- Workouts, intervals and breaks
- Event, launch and holiday countdowns
Tip: Add a minute with + while it runs if you need a little more time.
Frequently asked questions
Will the alarm ring if the tab is in the background?
Yes — the time comes from your clock, so it finishes on time, plays the alarm and shows a desktop notification if you allowed them.
Can I count down to a date?
Yes — choose “Count down to a date”, name your event and pick the date and time. You see days, hours, minutes and seconds, and can copy a share link.
Can it repeat?
Tick “Repeat when finished” for interval training or reminders — the alarm sounds and the timer starts again.
What are the keyboard shortcuts?
Space starts or pauses (or stops the alarm), + adds a minute, R resets and F goes full screen.
Does it keep running if I reload?
Yes — the end time is saved, so the countdown continues where it was.