Privacy

Your calculator inputs

Every calculation on Chalk Calculator runs in your browser. Your salary, your loan balance, your debts, your retirement savings — none of it is transmitted to a server, written to a database, saved in your browser storage, or put in the page URL.

This is architectural, not a policy promise. The site is a static export with no server runtime, no API routes and no database. There is nowhere for your figures to be sent even if something tried. The result-sharing feature copies plain text to your clipboard rather than building a link, precisely because a URL containing someone’s salary would end up in browser history, referrer headers and server logs.

Analytics

If analytics is enabled, it records which pages are viewed, a coarse device category and where visitors arrived from. It never records anything you type. The tracking function on this site takes a calculator name and nothing else — there is no parameter for a value, so no future change can accidentally start sending your numbers.

The intended provider is a cookie-free, privacy-preserving one that does not build cross-site profiles. If no analytics is configured, the site loads no third-party scripts at all.

Cookies

Chalk Calculator sets no cookies of its own. Your theme preference, if you set one, is stored in your browser’s local storage and never sent anywhere.

Advertising

The site is designed to be supported by advertising. Where ads are shown, the ad provider may set its own cookies and collect data under its own policy — that is outside our control and worth reading. What the ad provider can never receive is your calculator inputs, because those never exist outside your browser’s memory.

Accounts and personal data

There are no accounts, no sign-ups, no newsletters and no contact forms. We do not collect names, email addresses or any other personal information, because there is no feature that would use them.

How to verify this

Open your browser’s developer tools, switch to the network tab, and use any calculator on the site. You will see no request carrying your inputs, because none is made.