Online Stopwatch
A simple stopwatch with large digits and lap times. Use the buttons or the keyboard.
Uses for an online stopwatch
Workouts and HIIT
Show elapsed time in large digits on a TV or laptop at the gym.
Classroom activities
Time tasks and races on a projector where everyone can see.
Meetings and speeches
Keep track of how long each speaker talks.
Cooking and experiments
Time steps without touching your phone.
Keyboard shortcuts
Space starts and pauses, L records a lap and R resets. Each lap shows the split and the total time.
How to use it
Press Start or the Space bar. Press Lap or L to record a split. Press Reset or R to clear. Press Full screen for large digits.
Frequently asked questions
Does it keep running in a background tab?
Yes. Time is measured from the moment you press Start, so it stays accurate even when the tab is hidden.
How precise is it?
It shows hundredths of a second. That is accurate enough for everyday timing.
Is it free? Do I need to install anything?
Yes, it is free. Every screen runs in your web browser on a computer, phone or tablet. There is nothing to download and no account to create.
Do you store or upload anything?
No. Your settings are saved only in your own browser so they are ready next time. We do not use cookies, and we count visits with cookieless analytics.