Privacy Policy

Your calculations stay on your device

All calculators run entirely in your browser. Numbers you enter are never sent to our servers, and we operate no accounts, logins or forms that collect personal data. The only exceptions are the state income tax calculator and the IBAN validator, which fetch public 2026 rate and bank-reference data from their respective open APIs — your inputs are sent to those APIs to produce the result, and we store nothing.

Cookies and advertising

This site is funded by display advertising served by Adsterra. Ad networks may use cookies and similar technologies to serve relevant ads and measure campaigns. You can opt out of interest-based advertising via your browser settings or the Network Advertising Initiative opt-out page (networkadvertising.org/choices). We do not sell personal data — we collect none.

Analytics

We use aggregate, privacy-friendly statistics (such as Google Search Console click and impression data) to understand which tools are useful. This data is not tied to individuals.

Children

The site is a general-audience tool collection and is not directed at children under 13.

Contact

Questions about this policy: alexford0289+mc@gmail.com.