What is Stopwatch & Countdown Timer?
This combined tool gives you two essential timing utilities: a stopwatch that counts up with hundredth-of-a-second precision and lap recording, and a countdown timer that counts down from a set time and sounds an alarm when it reaches zero. Switch between them with a single tap.
Both are accurate, easy to read with large digits, and work entirely in your browser without any app to install.
How to Use the Stopwatch & Countdown Timer
- Choose the Stopwatch or Countdown tab.
- For the stopwatch, press Start and use Lap to record split times.
- For the countdown, set minutes and seconds, then press Start.
- The countdown sounds an alarm and shows a message when it finishes.
Features of Our Stopwatch & Countdown Timer
- Precise stopwatch with hundredths of a second
- Unlimited lap recording
- Countdown timer with audible alarm
- Large, easy-to-read display
- Pause, resume and reset controls
- Works fully offline
Benefits & Use Cases
Use the stopwatch for workouts, cooking, study sessions and timing tasks, and the countdown for interval training, presentations, exams and reminders. Lap times help you track performance across repeated efforts.
Everything runs in your browser, so it is instantly available on any device with no ads interrupting your timing.
Working with images should not require heavyweight software for simple jobs. The Stopwatch & Countdown Timer handles the task directly in your browser, so there is no installation, no account and no upload. It sits alongside our other image and media tools, letting you resize, convert, crop and process pictures in a single, convenient place while your files stay entirely on your own device.
Best of all, our Stopwatch & Countdown Timer runs entirely inside your web browser. Nothing you enter is uploaded or stored on a server, so your data stays private and results appear instantly. It is completely free, requires no sign-up or installation, and it works beautifully on desktop, tablet and mobile alike. The interface supports both light and dark themes and is built with accessibility in mind, so it is comfortable to use for everyone. Bookmark this page and come back to the Stopwatch & Countdown Timer as often as you need — it will always be here, ready and free to use.
Tips for Getting the Best Results
For the best output from the Stopwatch & Countdown Timer, start with the highest-quality source image you have, since detail that is missing from the original cannot be recovered later. Preview the result before you download it, and if the outcome is not quite right, simply adjust the settings and process the image again — there is no limit on how many times you can try.
It is always wise to keep a copy of your original file, so you can go back and start over if you need a different size, format or crop in future. Because the Stopwatch & Countdown Timer does all of its work inside your browser and never uploads your pictures, you can process personal photos, screenshots and confidential graphics with complete peace of mind about your privacy.
FAQ about Stopwatch & Countdown Timer
How accurate is the stopwatch?
It measures elapsed time from the system clock and displays hundredths of a second, so it is accurate enough for everyday and sports timing.
Does the countdown make a sound?
Yes. When the countdown reaches zero it plays an audible beep alarm and shows a Time's up message.
Can I record lap times?
Yes. Press Lap while the stopwatch runs to record split times, which appear in a list below the display.
Will it keep running if I switch tabs?
The timer keeps counting based on the clock, but for reliable alarms keep the tab open and your device awake.