Privacy Policy

Last updated: 10 November 2026

The short version

Keysheet has no accounts, no sign-up, and no cloud storage. Every calculation runs locally in your browser. The numbers you type never leave your device.

What is stored

• Nothing you calculate is transmitted or stored server-side.
• Calculator settings live only in the page you have open and disappear when you close the tab or use the reset controls.

Hosting and logs

The site is served as static files. Our hosting provider may keep short-lived, standard technical request logs (such as IP address and requested URL) for security and abuse prevention, as essentially every web host does.

Advertising (reserved slots)

Ad placements on this site are currently empty placeholders — no ad scripts are loaded and no ad-related requests are made. If advertising is ever enabled, third-party ad vendors may set cookies or use device identifiers, and this policy will be updated first, with the vendor named here.

Contact

Questions about this policy? See the contact page.