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Free Lap Counter (Timed)

A precision lap timer that records every split with high-resolution timing. See best, average, and worst laps, export to CSV, and keep your session through a refresh. Keyboard shortcuts included.

Works offline once loaded
0:00.00

0 laps · ready

Keyboard: Space = lap · Enter = stop / resume

💡 Timing uses your browser's high-resolution clock (performance.now()). Your session is saved locally, so a refresh won't lose your laps. Nothing is uploaded.

How It Works

A precision lap timer for repeated timed efforts — laps, intervals, track sessions. Unlike a plain tally counter, it records the time of every lap and computes your best, worst, and average split.

  1. 1
    Start the timer
    Press Start (or the Space bar). The running total ticks using your browser's high-resolution clock for accuracy.
  2. 2
    Mark each lap
    Tap Lap (or Space) at each lap. Each split is recorded with its own time and a running cumulative total; the fastest and slowest laps are highlighted automatically.
  3. 3
    Review and export
    See best / average / worst lap stats, then export every lap to CSV. Your session is saved locally, so an accidental refresh won't lose it.

Everything runs and is stored in your browser. No account, no upload, no network calls.

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Frequently Asked Questions