TIME UTILITY
Online Stopwatch
00:00:00.000
Ready
Keyboard Shortcuts: Space Start/Pause · L Lap · R Reset
LapLap TimeTotal Time
No laps recorded yet.
0Total Laps
—Fastest Lap
—Slowest Lap
ReadyCurrent Status
⏱️ 100% Private: Stopwatch data stays inside your browser and is never uploaded.
Offline-ready
Free Online Stopwatch
Track workouts, study sessions, competitions, cooking time, productivity tasks and experiments with millisecond precision. The stopwatch works locally without CDN, login or server connection.
Precise Timing
Uses high-resolution browser timing.
Uses high-resolution browser timing.
Lap Tracking
Record individual and total lap times.
Record individual and total lap times.
Fastest & Slowest
Automatically highlights lap performance.
Automatically highlights lap performance.
Offline Ready
Works without internet or external files.
Works without internet or external files.
Frequently Asked Questions
Does the stopwatch continue when the tab is inactive?
Yes. It calculates elapsed time using browser timestamps, so switching tabs does not stop the measurement.
Can I save lap results?
Yes. Use the Download Laps button to save all lap and total times in a TXT file.
Does it work offline?
Yes. This single HTML file has no CDN or external dependency.