Online Timer & Stopwatch
Online Timer & Stopwatch: free, accurate and easy to use. Works in your browser with no sign-up.
How to use
A simple online stopwatch with lap times and a countdown timer with a sound alert. Start, pause and reset with one click, and the time stays accurate even if you switch tabs. Use it for cooking, workouts, studying, presentations and games.
- Enter a date, time or value.
- Results update instantly.
- Copy the result you need.
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Frequently asked questions
Does the timer keep running in another tab?
Yes. It calculates time from the system clock, so it stays accurate even when the tab is in the background.
Will I hear an alarm?
Yes. A short beep plays when the timer ends. Make sure your device volume is on.
Is it free?
Yes. All tools are free, with no sign-up and no limits.
Is my data stored or sent?
No. Everything runs in your browser. A few tools remember your choices on this device only.
Are the results accurate?
Calculations use your browser’s built-in date and time zone data and standard formulas. For legal or religious dates, confirm with the official authority.