Stopwatch
Laps you record will appear here.
A free online stopwatch
Press Start to begin counting up, Lap to record a split without stopping, and Pause when you're done. Elapsed time is computed from an absolute start timestamp, not a number ticking up in memory, so it stays accurate no matter how long the tab sits in the background.
Lap times, with the fastest and slowest called out
Every recorded lap shows its own split time, and once you've logged at least two, the fastest lap is tinted green and the slowest amber — useful for interval training or comparing repeated attempts at a glance, without doing the subtraction yourself.
Looking for a countdown instead?
A stopwatch counts up with no end point; a timer counts down from a duration you set and rings when it hits zero. Need to wake up at a specific time instead? See the alarm clock.
Frequently asked questions
Can I record laps without stopping the stopwatch?
Yes — press "Lap" (or the L key) any time while it's running; it keeps counting, and the split appears in the lap list immediately.
Why is Reset disabled while the stopwatch is running?
Pause it first — this avoids accidentally discarding a running session's time with an accidental tap.
Will my laps be saved if I close the tab?
Yes — the stopwatch's state and lap list are saved to your browser's local storage and restored the next time you open this page.