스톱워치

드리프트 없는 경과 시간과 랩 통계를 기록하고 세션을 로컬 저장하거나 내보냅니다.

스톱워치

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키보드: Space는 시작/일시정지, L은 랩 기록.
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#랩스톱워치

아직 항목이 없습니다.

저장된 세션 (0)
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. 1.Start the stopwatch and record laps as needed.
  2. 2.Pause or resume without losing elapsed time.
  3. 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.

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