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What Is an Online Timer & Stopwatch?
This is a free browser-based tool that does two jobs. The countdown timer counts down from a time you set and rings an alarm at zero — perfect for cooking, workouts, Pomodoro study sessions, presentations and exams. The stopwatch counts up from zero and lets you record lap times, so you can measure how long anything takes. No app to install and no login needed.
Popular Uses
Study (Pomodoro)
25 min focus + 5 min break
Cooking
Boil, bake & brew timing
Workout
HIIT intervals & rest
Presentations
Keep talks on time
Running laps
Lap times on the stopwatch
Exams & tests
Practice under time limits
Tips
- Use a quick preset (1, 5, 10, 15 or 25 minutes) to start the timer instantly.
- The timer keeps accurate time even if you switch tabs, using your device clock.
- Tap once on the page first so your browser allows the alarm sound to play.
- Use the stopwatch Lap button to compare how long each repetition takes.
Frequently Asked Questions
Common timer and stopwatch questions
What is the difference between a timer and a stopwatch?
A countdown timer counts down from a time you set and sounds an alarm when it reaches zero — useful for cooking, studying or workouts. A stopwatch counts up from zero so you can measure how long something takes, and you can record lap times along the way.
Will the timer alarm work if I switch tabs?
Yes. The timer keeps running based on the real clock even if you switch tabs or minimise the window, and the alarm sounds when the time is up. For sound to play, your browser tab must not be muted and you should interact with the page at least once.
Can I use this as a kitchen or study timer?
Absolutely. Set the hours, minutes and seconds you need — for example 25 minutes for a Pomodoro study session or 10 minutes for boiling eggs — press Start, and the alarm rings when it finishes. It works on phones, tablets and computers.
What are lap times on the stopwatch?
A lap records the elapsed time at the moment you tap Lap without stopping the clock. It is handy for timing repeated activities — running laps, exercise sets or steps in a process — so you can compare how long each one took.
Is this timer accurate and free?
Yes. It is completely free with no login and runs in your browser. The timing is based on your device's clock, so it stays accurate even if the page briefly lags, and nothing you do is sent to a server.