Free Online Timer & Stopwatch with Alarm: No Sign-Up
Free countdown timer and stopwatch in your browser: for cooking, Pomodoro study, workouts or work.
Online timer with countdown and stopwatch, plus a sound alarm when it ends. Great for cooking, Pomodoro study sessions or workouts.
By VOV · Last updated: October 21, 2026
How it works
The timer uses your own browser clock: the countdown is computed from timestamps, so it stays accurate even if you switch tabs. When it ends, an alarm generated with Web Audio sounds, with no external files. The stopwatch measures with hundredth-of-a-second precision using performance.now().
Use cases
- Run a 25-minute focused work sprint using the Pomodoro technique without installing any extra app
- Set a 10-minute timer for your daily planks and squats during today's home workout session
- Use the countdown timer to control your pasta's cooking time so it doesn't burn at all
Frequently asked questions
Does an alarm sound when it ends?
Yes: it beeps at zero and the tab flashes. Keep the tab open with sound on.
Does it work with the screen off?
On mobile, if the browser is suspended the timer may pause. For long timings use the system clock app.
What is the Pomodoro technique?
Work 25 minutes, rest 5, and every 4 cycles take a long 15–30 minute break. Set 25:00 to start.