30 Minute Timer
A 30:00 countdown, already dialed in — press Start and get a triple beep plus a flashing display when time is up. Free, no sign-up, and the tab title keeps counting even while you work in another tab.
Minutes
Custom minutes
Custom seconds
A beep plays when the timer finishes — keep this tab's sound on.
What a 30 minute timer is good for
The half-hour block covers a full home workout, most baking recipes, a serious study or deep-work session, and the polite limit for meetings that should have been an email. The alarm beeps three times so you will not miss the end.
Need a different length? Change the minutes right in the timer above, or jump to another preset below. For counting up instead of down, use the Online Stopwatch; for counting down to a calendar date, try the Countdown to Date.