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TimerAlarmClock

About TimerAlarmClock

What this is

TimerAlarmClock is a small set of free time tools that run entirely in your browser: an alarm clock, a timer, a stopwatch, a clock and a countdown. There is no account, nothing to install, and no step between opening a page and using it.

How it is built

Every page is plain static HTML, with a small amount of JavaScript for the tool itself. There are no web fonts, no images in the critical path and no third-party scripts, which is why pages open immediately rather than after a spinner.

The timing is the part that got the most care. Nothing counts down by subtracting a second at a time, because browsers throttle background tabs and that approach quietly drifts. Each tool is anchored to a real clock instant instead — and the stopwatch, which measures a duration rather than a moment, uses a steady clock that a system time change cannot disturb. Switch tabs, lock your phone or refresh the page: the numbers stay right.

What it does not do

It does not ask who you are, does not use your location, and does not send what you type anywhere. Your alarm time, laps and countdown titles live in your own browser and nowhere else. The full detail is in the privacy policy.

Where the limits are

A web page cannot ring after you close it. An alarm or countdown here needs its tab left open, and browsers can block sound until you have interacted with the page. For anything you genuinely cannot miss, set a second alarm on a device built for the job. The terms of use say the same thing at greater length.

Feedback

Corrections and suggestions are genuinely welcome — the contact page explains how to get in touch.