Privacy
The reference is built to work with as little of your data as possible. Reading it collects nothing. Creating an account stores exactly three things: an email address, an optional display name, and the compounds and stacks you choose to save. There are no analytics and no third-party trackers on this site.
Reading without an account
Pages are static and are served without asking you to identify yourself. Anything you type into the calculators is computed in your browser and never sent anywhere. The one preference stored on your device is your choice of light or dark theme, kept in local storage so the page does not flash the wrong theme on reload. Clearing site data removes it.
Accounts
An account holds an email address, an optional display name, and your bookmarks — the compounds saved to your library and the stack layouts you save. That is the complete list. Signing in sets authentication cookies on your device; they exist only to keep you signed in. Health information, orders, and anything entered into the tools are explicitly out of scope, and your saved items are readable by no one but you — enforced at the database layer, not just the interface.
Analytics — not enabled
No analytics are running. If they are added, they will be aggregate and non-identifying, used only to see which entries are read, and this page will be updated before they go live. No third-party advertising trackers will be used.
Your controls
Account settings include delete account. Deletion is immediate and permanent: the account row, the library, and every saved stack are removed together. Signing out removes the authentication cookies from your device.
Changes
This page is versioned with the site and updated when what we collect changes — not after.