Local · Private · Free

Countdown & Stopwatch

Count down to zero with a chime, or time anything with laps, accurate to the millisecond and entirely on your device.

00:25:00

Hours

Minutes

Seconds

…or count down to a time today

Chime at zero Desktop notification

00:00.00

Timing runs locally in your browser, nothing is uploaded.

Accurate timing, no install

Both tools time against the system clock rather than counting interval ticks, so they stay accurate even if the tab is throttled in the background. The countdown can chime and raise a desktop notification when it reaches zero (permission is only requested when you tick the box), and the stopwatch records lap and split times. Free forever, nothing leaves your device.

About Countdown & Stopwatch

Countdown & Stopwatch is a free, private productivity tool that runs entirely in your web browser. Set a big countdown timer with a chime and desktop notification at zero, or run a stopwatch with lap and split times. Because everything happens locally on your device, your data is never uploaded to a server, there is no sign-up or installation required, and it keeps working offline. Like every free tool by Digital Heroes, it is 100% free with no limits.

What you can do

Set a countdown in hours, minutes, and seconds, or pick a quick preset: 1, 5, 10, or 25 minutes.

Count down to a specific clock time today using the target time input.

Get a chime and desktop notification the moment the countdown reaches zero.

Run a stopwatch accurate to the centisecond, with Start, Pause, and Reset controls.

Record lap and split times and see the fastest and slowest laps highlighted automatically.

Copy laps to clipboard as a tab-separated table ready to paste into a spreadsheet.

How to use Countdown & Stopwatch

Open Countdown & Stopwatch in your browser. No signup needed.

Choose Countdown or Stopwatch with the tab at the top of the card.

For the countdown: type a duration or pick a preset, then press Start. Tick the checkboxes to enable a chime or desktop notification at zero.

For the stopwatch: press Start, tap Lap to record each split, then Copy laps to export the table.

Frequently asked questions

Is Countdown & Stopwatch free?

Yes, Countdown & Stopwatch is completely free for everyone. No sign-up, no account and no usage limits.

Is it private? Are my files uploaded anywhere?

No. Countdown & Stopwatch runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.

Does it work offline?

Yes. This tool is a Progressive Web App, once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.

What does Countdown & Stopwatch do?

A big countdown timer and stopwatch with alerts, for events & focus.