Online Stopwatch is a free browser-based stopwatch that measures elapsed time clearly in your browser. Start, pause, resume, reset, and record lap times instantly without installing any software. Use fullscreen mode for sports, workouts, study sessions, presentations, experiments, and everyday timing tasks.
Features
Accurate Time Measurement
Measure elapsed time with a continuously running stopwatch that updates in real time. Perfect for activities where every second matters.
Start, Pause, and Resume
Control your timing with simple one-click actions. Pause whenever needed and continue without losing your recorded time.
Lap Timer
Record lap or split times during a session to track multiple intervals without stopping the stopwatch. Ideal for running, training, competitions, and productivity tracking.
Fullscreen Display
Switch to fullscreen mode for a large, distraction-free stopwatch that's easy to read from across the room. Great for classrooms, gyms, meetings, and presentations.
Works on Any Device
The stopwatch runs directly in your browser and works on desktop computers, laptops, tablets, and smartphones without downloading an app.
Why Use an Online Stopwatch?
An online stopwatch provides a quick and convenient way to measure elapsed time without installing additional software or carrying a physical stopwatch. Simply open the page, press Start, and begin timing immediately.
Whether you're tracking exercise, studying with timed sessions, conducting experiments, practicing speeches, or measuring task duration, an online stopwatch is always available in your browser whenever you need it.
Common Use Cases
This online stopwatch is commonly used for:
- Running and athletic training
- HIIT and interval workouts
- Gym exercises
- Classroom activities
- Science experiments
- Public speaking practice
- Cooking preparation
- Productivity tracking
- Study sessions
- Board games
- Chess practice
- Speed challenges
- Gaming activities
Why Choose This Stopwatch?
Designed with simplicity and accuracy in mind, this stopwatch provides large, easy-to-read numbers, responsive controls, fullscreen support, and lap tracking without unnecessary distractions.
Because it runs entirely in your browser, you can access it instantly from almost any device without creating an account or installing software.
Frequently Asked Questions
Is this stopwatch free?
Yes. The stopwatch is completely free and works directly in your browser.
Can I pause and resume the stopwatch?
Yes. You can pause the stopwatch at any time and resume counting without resetting the elapsed time.
Does this stopwatch support lap times?
Yes. You can record lap or split times while the stopwatch continues running.
Can I use fullscreen mode?
Yes. Fullscreen mode provides a large display that's easy to see during workouts, presentations, or classroom activities.
Does the stopwatch work on mobile devices?
Yes. It works on desktops, laptops, tablets, and smartphones using any modern browser.
Do I need to install an app?
No. Everything runs directly in your browser without any downloads or installation.
Can I use it offline?
Once the page has loaded, basic stopwatch functionality can continue as long as the page remains open. Internet access is required for the initial page load.