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History for this tool
The most recent data you entered in this tool, stored only in this browser.
Save what you type here, in this browser? Your work would go into this browser's local storage, so a refresh or a trip to another tool does not wipe it. You also get a short list of previous entries under the form, each one restorable with a click. Nothing is ever uploaded, and there is no account.
Being straight about the trade-off: anything kept there can be read by anyone who can use this browser profile, and by any script that later runs on this site. A tool page can hold a private key, a password or a signed token. Saving is convenient; it is not private.
Saved on this device
Your inputs and history are stored locally.
Not saved
This page forgets your work when you leave it.
About this tool
A stopwatch with lap times, counting in tenths of a second, for timing something without leaving the browser.Questions
- Does it keep running if I switch tabs?
- Yes. The elapsed time is computed from a clock reading rather than by counting ticks, so a backgrounded tab cannot make it drift.