Local by construction
Your measurements stay on this page.
The calculators run in the browser. They have no account, cookie, local storage, session storage or form-submission path.
Inputs used
Only the dimensions, clearances, module count, stackability choice and optional edge labels you enter are used to produce the current result. Reloading the page resets the form to its included examples.
The release build uses aggregate page and tool-completion measurement without Webvisor or submitted dimensions. Add ?portfolio_qa=1 for measurement-free QA. Only the root fit checker is indexable; the comparison, allocation, method and privacy pages remain noindex.