Privacy Policy
This page describes what actually happens to your data on Calci. It reflects the site's current practices and will be updated if anything here changes.
Calculator inputs stay in your browser
Everything you type into a calculator, numbers, selections, dates, times, is processed entirely client side by JavaScript running in your browser. None of it is transmitted to a server, logged, or stored by Calci in any form. Refreshing or closing the page clears it completely.
No accounts, no logins, no cookies from this site
There is nothing to sign up for. Calci does not create accounts, does not ask you to log in, and does not set cookies of its own for tracking, preferences, or any other purpose.
Cloudflare Web Analytics
Calci uses Cloudflare Web Analytics to measure aggregate traffic, things like which pages are visited and roughly how many people visit them. It's cookieless: Cloudflare states that Web Analytics does not use cookies, localStorage, or other client-side state to collect usage metrics, and does not fingerprint visitors by IP address or user agent (2026). That means it doesn't set a persistent identifier on your device and doesn't track you across other websites.
Cloudflare as infrastructure
Calci is served through Cloudflare's network. Like any content delivery network or hosting provider, Cloudflare's privacy policy describes the standard request data it processes for every visit (2026), things such as IP address, browser and system information, and the page requested, as part of normal web infrastructure. This is separate from the Web Analytics beacon described above and is true of essentially any website on the internet, not something specific to Calci.
Questions
If anything on this page is unclear, or you want to ask about a specific data practice, use Contact.