Close-up of a stopwatch counting down
Everyday Timers

Countdown Timer

Pick a duration and it counts down to zero on a big, easy-to-read display — set the rounds and it repeats as many times as you like.

Countdown Presets

Popular Durations

The Basics

The Online Countdown Timer

What a Countdown Timer Does

A countdown timer does one thing well: you give it a length of time, press start, and it counts down to zero — then a sound and a spoken alert tell you the moment it is done. There is no setup beyond choosing the duration, which is why it is the timer people reach for dozens of times a day, for cooking, study, games, workouts, and everything in between.

Every preset here runs entirely in your browser, with nothing to install and no account to create, on a big display you can read from across the room. Press start and go.

Repeat It as Many Times as You Like

A countdown does not have to stop after one run. Open any preset in the editor and set the number of rounds, and the same block repeats — a 30-second countdown becomes the four quadrants of brushing your teeth, or ten rounds of an interval; a five-minute timer loops for the length of a chore. It turns a plain countdown into a simple repeating timer without building anything from scratch.

Because each round runs straight into the next with no gap, it suits anything you do in fixed, repeated stints. When you want rest between rounds instead, the workout timers — HIIT, Tabata, circuit — add a rest interval and count the rounds for you.

Pick a Duration

The presets cover the durations people search for most, from a six-second breath to a ninety-minute sleep cycle — including the in-between lengths a phone’s built-in timer makes fiddly to set, like 90 seconds, 2 minutes 30 seconds, or 4:30. Each one is a single tap to start.

None of them fits? Press “Build Your Countdown” to set any length down to the second, then save it or bookmark the page. The duration lives in the URL, so a timer you use often is always one click away.

Good to Know

Frequently Asked Questions

What is an online countdown timer?
A timer that counts down a length of time you choose and alerts you when it reaches zero — run from a web page, with nothing to install. Pick one of the duration presets or set your own, press start, and it counts down on screen.
Can the countdown timer repeat or loop?
Yes. Open any preset in the editor and set the number of rounds, and the countdown repeats that many times with no gap between — turning a one-off countdown into a repeating timer.
Can I run the timer full screen?
Yes. Press the fullscreen button in the control bar and the countdown fills the whole screen, so it stays easy to read from across a room.
Does it make a sound when it ends?
Yes — a sound and a spoken alert play the moment the countdown reaches zero, so you do not have to watch the clock. Keep the tab open and the volume up.
Is the countdown timer free?
Yes. It is free, needs no account, and runs in any browser on phone, tablet, or desktop. The same timers are in the free Seconds Interval Timer app on iOS and Android.
Woman holding an iPhone running Seconds Interval Timer
Mobile App

Seconds Interval Timer

The full Seconds experience — on iPhone, Apple Watch, and Android.

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