Online Stopwatch — Precision Digital Lap Stopwatch
Free Online Stopwatch with milliseconds and lap timer. Track workout intervals, study sessions, speedruns, and sports timings accurately.
What is this tool?
Online Stopwatch provides millisecond-precise time tracking in your web browser. Start, pause, split laps, and export lap intervals for workouts, cooking, and productivity.
How to Use Online Stopwatch — Precision Digital Lap Stopwatch
Start Timing
Click the "Start" button to begin timing with high-resolution performance.now() precision.
Record Split Laps
Hit "Lap" while running to log split times and overall elapsed times into the laps table.
Export & Reset
Copy lap times to your clipboard or reset the counter to zero when finished.
Whether timing athletic sprints, tracking Pomodoro sessions, or speedrunning video games, our Online Stopwatch relies on browser hardware clocks to prevent frame-rate drift.
Featuring large high-contrast digits and keyboard-friendly controls, it works seamlessly across desktop and mobile devices.
Popular Use Cases for Instagram & Creators
Fitness & HIIT Workouts
Time intervals, track circuit rounds, and record split lap times at the gym.
Speedrunning & Gaming
Measure trial times, level completion, and challenge runs with millisecond precision.
Work & Productivity
Track task durations, client billable hours, and meeting speech limits.
Frequently Asked Questions
It utilizes window.performance.now() with microsecond resolution for sub-millisecond precision.
Speed It Up With the Instagram Giveaway Tool
The Instagram Comment Picker makes picking winners from Instagram comments fast, fair, and effortless. Both the comment picker and wheel tools share our certified random generator engine and free trial credits.
Try Instagram Comment Picker