Privacy Policy

Last updated: July 15, 2026

The short version

Every tool on CalcuCalcu runs entirely in your browser. The numbers you type, the text you convert, and the images or photos you process are never uploaded to our servers — we don't have servers that receive them. What we do collect is the same anonymous usage data most websites collect, through Google Analytics and Google AdSense, as described below.

Data you enter into tools

Calculator inputs, converted text, generated UUIDs and passwords, uploaded images and HEIC photos are processed locally on your device using JavaScript. They never leave your browser and we cannot see them. Some tools offer to remember your entries (for example the spin wheel's option list or your preferred units) — that data is stored in your browser's localStorage only, and you can clear it at any time through your browser settings.

Analytics

We use Google Analytics 4 to understand which tools are used and how the site performs (pages visited, approximate region, device type). This data is aggregated and does not identify you personally. See Google's Privacy Policy for how Google processes this data.

Advertising

We display ads through Google AdSense to keep the tools free. Google and its partners may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising at Google Ads Settings. Third-party vendors' use of advertising cookies is described in Google's advertising policies.

Cookies

We set no tracking cookies of our own. Cookies on this site come from Google Analytics and Google AdSense as described above. Your theme preference (light/dark) and unit settings are stored in localStorage, not cookies, and are never transmitted.

Your rights

Since we don't collect or store personal data ourselves, there is no account to delete or data export to request from us. For data collected by Google (Analytics, AdSense), use Google's own privacy controls linked above.

Contact

Questions about this policy? Reach us through our contact form.