Privacy

Short version: there are no accounts, and what you type into a calculator never leaves your device.

Calculations stay in your browser

Every calculator runs entirely in the page. The expression you enter is never sent to a server, never logged and never stored.

One setting: whether you chose the light or dark theme. It is kept in your own browser and is not readable by us.

If page analytics are used, they record pages viewed, not what you typed. No profile is built and nothing is sold.