Stopwatch
Measure drift-free elapsed time, record lap statistics, and save or export sessions locally.
Cronómetro
00:00.00
Teclado: Espacio inicia o pausa; L registra una vuelta.
Más rápida
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Más lenta
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Promedio
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Vueltas (0)
| # | Vuelta | Cronómetro |
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Todavía no hay nada.
Sesiones guardadas (0)
Procesado localmente en tu navegador. Tus archivos y datos no se suben.
Accurate elapsed time
This stopwatch calculates elapsed time from timestamps, so background-tab throttling does not make the clock drift. Record laps, compare fastest and slowest splits, and resume after a reload.
How to use
- 1.Start the stopwatch and record laps as needed.
- 2.Pause or resume without losing elapsed time.
- 3.Name and save a session, then export history as JSON or CSV.
Local floating display
Saved sessions remain in local browser storage. Document Picture-in-Picture provides a floating display where supported, with an in-page fallback everywhere else.
