Press the start button to begin measuring time and stop it when you're done. Use the reset button to start over. You don't need to sign up or download an app, the tool works right in your browser.
A stopwatch starts from zero and counts up, measuring the time that has passed. A timer counts down from a time you set.
The tool is completely free and requires no account.
The tool runs in your browser, so you can use it on a phone, tablet or computer.