Online Countdown Timer Free

Set a duration, start, pause, and get an alert when time is up.

Stopwatch Countdown

05:00

Set a time and press Start

Hours

Minutes

Seconds

Tick each second Finish sound Flash page

How to Use the Countdown Timer

Set time

Use presets or type hours, minutes, and seconds.

Start

Press Start. Pause and resume anytime.

Alert

Optional sound and flash when the timer ends.

Frequently Asked Questions

How do I set the countdown timer?

Enter hours, minutes, and seconds, or tap a preset (1, 5, 10, 15, 25, 30 minutes). Press Start to begin.

What happens when time runs out?

The display shows “Time’s up!” If Finish sound is on, the alarm keeps ringing until you press Stop alarm or Reset. The page can flash and phones may vibrate. Press Start once first so your browser allows audio.

Can I hear a tick every second?

Yes. Enable “Tick each second” for a soft tic while the countdown is running. “Finish sound” is the continuous alarm at zero (stop it with Stop alarm). Both need a prior Start (or Test alarm) so the browser allows audio.

How do I stop the finish alarm?

Tap Stop alarm (appears when the alarm is ringing), or Reset, or Start a new countdown. Unchecking Finish sound also stops it.

Why is there no sound when the timer ends?

Browsers block sound until you interact with the page. Press Start (or Test alarm) with Finish sound checked. Keep the tab open; background tabs may silence or delay audio. Use headphones if the device is muted or very quiet.

Can I use this as a Pomodoro timer?

Yes. Use the 25-minute preset for focus blocks, or set a custom length. Pair with Site95’s free tools between sessions.

Does the timer work offline?

After the page loads, timing runs locally in your browser. Sound still needs a recent user gesture (Start) in many browsers.

Is the countdown timer free?

Yes — free, no signup, and nothing is uploaded to Site95.