Privacy Policy

Last updated: November 9, 2026

MarginKit ("we") runs free online calculators. This policy explains what data is collected when you use this website.

Calculator inputs

All calculations run in your browser. The numbers and URLs you enter are not sent to or stored on our servers. Some tools, such as the UTM builder's "recent links", save data in your browser's local storage on your device only. You can clear it at any time.

Analytics

We use Google Analytics 4 (via Google Tag Manager) to understand how visitors use the site, for example which tools are used and which pages are visited. Google may set cookies and collect data such as your IP address, device and browser. See how Google uses data from sites that use its services.

Advertising

We may show ads served by Google AdSense or other ad networks. These partners may use cookies to show ads based on your visits to this and other websites. You can opt out of personalised advertising at Google Ads Settings. Visitors in the EEA, UK and Switzerland will be asked for consent before such cookies are set.

Affiliate links

Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you. Partners may set cookies to credit the referral.

Contact

Questions about this policy: see our contact page.