Stopwatch & Countdown Timer with Lap Splits
Use a clean online stopwatch with lap splits, or switch to countdown mode for a quick timer. ToolMint's timer runs entirely in the browser with centisecond precision and smooth updates powered by performance.now() and requestAnimationFrame.
Stopwatch
Lap timer + simple countdown mode.
Accurate timing
Uses high-resolution timing in your browser.
Laps
Track splits while the stopwatch is running.
Countdown
Set minutes and seconds for a simple timer.
Included Stopwatch Tools
Stopwatch Mode
Run an accurate stopwatch with live elapsed time, pause and resume support, and clean centisecond formatting for workouts or events.
Countdown Timer Mode
Switch to countdown mode, enter minutes and seconds, and let the timer run down with a clear completion state when time is up.
Lap Splits
Record lap times instantly while the stopwatch is running, including split order and a readable history of each recorded lap.
High-Precision Timing Engine
Uses performance.now() and requestAnimationFrame for smooth updates and accurate centisecond timing directly in your browser.
How to Use the Stopwatch
Choose a mode
Select Stopwatch mode for elapsed timing or Countdown mode if you need a timer that counts down to zero.
Start timing
Press Start to begin measuring time. In countdown mode, set your minutes and seconds before starting.
Pause or record laps
Pause and resume whenever needed, or record lap splits while the stopwatch continues running in the background.
Reset when finished
Use Reset to clear the timer and, if applicable, remove lap history or the completed countdown state.
Frequently Asked Questions
- Does this tool include both a stopwatch and a countdown timer?
- Yes. ToolMint's Stopwatch page includes 2 modes: a stopwatch with lap tracking and a countdown timer with configurable minutes and seconds. Switching modes resets the previous state so timing stays clean.
- How accurate is the stopwatch?
- The stopwatch uses performance.now() together with requestAnimationFrame for high-resolution browser timing. It displays time to centiseconds in MM:SS.CS format, which is accurate enough for general timing, training, and everyday use.
- Can I record lap times?
- Yes. In stopwatch mode you can record lap splits while the timer continues to run. Each lap is stored in a running history so you can compare intervals after the session.
- What happens when the countdown reaches zero?
- The countdown stops automatically and shows a clear completion state so you know time is up. You can then reset the timer or enter a new time and run it again.
- Does the stopwatch work without installing an app?
- Yes. Everything runs directly in your browser with no install, no signup, and no data sent to a server. It works as a quick browser-based stopwatch and timer.