Privacy & browser storage
Calculator inputs are processed by code running in your browser. The application does not send those inputs to an external calculation service or include them in shared calculator URLs.
Favourites and appearance
The site uses local storage in your browser to remember favourite calculator IDs and your light or dark appearance preference. These settings are specific to that browser. Clear this site’s browser data to remove them.
Analytics and advertising
Advertising is not active in this version. No Google advertising script is loaded. The site does not include third-party analytics scripts, newsletter collection or a user account system.
Hosting
Like other websites, page requests pass through the hosting provider. Hosting infrastructure may process technical request information, such as IP addresses and user-agent details, to serve and secure the site. This is distinct from the calculator values, which the application processes locally.
Shared devices
Inputs may remain visible while a page is open. Reset a calculator or close the page when using a shared device. Favourites and appearance settings may remain until browser storage is cleared.