15 Minute Timer
A 15:00 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 15 minute timer is good for
The quarter-hour is the classic power-nap length, a common short-break allowance at work, a solid study sprint for younger students, and the usual "check the roast" interval. One click on Start and the tab title counts it down wherever you are.
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.