Privacy Policy

Calculations stay on your device

Every CalcStack calculator runs as code in your own browser. The values you type are processed locally and are never transmitted to us or any third party. We have no database of your inputs because they never leave your device.

No accounts, no personal data

You don't need to register to use any tool, and we don't ask for your name, email or any personal information to perform a calculation.

Cookies & analytics

CalcStack does not set advertising cookies. If basic, privacy-respecting analytics are ever used to count page views, they are aggregated and cannot identify you. This page will be updated if that changes.

Contact

Questions about privacy? Reach us via the contact page.

Last updated: June 2026.