Stopwatch
time events precisely with laps
- Processed client-side in your browser — files never leave your device.
- Free, with no signup, account, or usage limits.
- Works on any modern browser, including mobile.
About this tool
Use Stopwatch when you need to time events precisely with laps. Processing runs locally in your browser — your input is not uploaded to ThothBox.
How to use
- Open Stopwatch and enter the values you want to calculate or convert.
- Adjust units or options if shown.
- Read the result instantly.
- Copy the output or try another set of inputs.
FAQ
What does Stopwatch do?
time events precisely with laps.
Is Stopwatch private?
Yes for typical use: input is processed in your browser and is not uploaded to ThothBox.
Is Stopwatch free?
Yes. It is free to use with no signup required.
How do I use Stopwatch?
Open the Stopwatch tool, then open Stopwatch and enter the values you want to calculate or convert.