Privacy Policy

1. Overview

This Privacy Policy explains how Calc369 ("we," "us," or "this site") handles information when you visit and use our tools. We built Calc369 so that the actual calculations and conversions happen directly in your browser, meaning the numbers, text, or colors you enter into a calculator are processed locally on your device and are not transmitted to or stored on our servers.

2. Information We Collect

We do not require account creation, and our tools do not ask for personal information like your name, email, or payment details in order to function. Standard web server logs may record basic technical information such as your browser type, approximate location (from IP address), and pages visited, which is common practice for most websites and is used only in aggregate to understand traffic patterns.

3. Local Storage on Your Device

A small number of preferences, such as your chosen currency on money-based calculators and your light/dark theme choice, are saved using your browser's local storage rather than a server database. This data stays on your own device, is never transmitted to us, and can be cleared at any time by clearing your browser's site data or switching to a private/incognito window.

4. Cookies and Advertising

Calc369 itself does not set tracking cookies. This site may display advertisements served by Google AdSense or similar third-party advertising networks. These networks may use cookies or similar technologies to serve ads based on your prior visits to this or other websites. You can learn more about how Google uses this data and manage your ad personalization settings through Google's Ads Settings page, and you can opt out of personalized advertising from participating networks via the Digital Advertising Alliance's opt-out page (aboutads.info) or the Network Advertising Initiative's opt-out page (optout.networkadvertising.org).

5. Fonts and Third-Party Code Libraries

This site loads its typefaces from Google Fonts and, on a handful of specific tools (QR code and barcode generators, code formatters/beautifiers, and PDF tools), loads small open-source JavaScript libraries from public content delivery networks (Google Fonts, cdnjs, and jsDelivr). Loading these files involves your browser making a direct request to those providers' servers, the same way any embedded font or script works on most websites. None of your calculator inputs, uploaded files, or generated results are sent through these requests, they only deliver the static font or code files needed to run the page.

6. We Do Not Sell Your Information

We do not sell, rent, or trade personal information to third parties for their own marketing purposes.

7. Your Rights and Data Requests

Because Calc369 does not maintain user accounts or a database of personal information tied to individual visitors, there is generally no stored personal data to access, correct, or delete on our end. If you believe we hold information about you and would like to make a request regarding it, or if you have questions about your rights under a specific privacy law that applies to you (such as GDPR or CCPA), contact us and we'll respond within a reasonable time.

8. Third-Party Links

Our tools and content may occasionally link to external websites. We are not responsible for the privacy practices or content of any third-party sites, and we encourage you to review the privacy policy of any site you visit.

9. Children's Privacy

Calc369 is not directed at children under 13, and we do not knowingly collect personal information from children.

10. Changes to This Policy

We may update this policy from time to time as the site grows or as regulations change. Continued use of the site after changes are posted means you accept the revised policy.

11. Contact Us

If you have questions about this Privacy Policy, reach out via our Contact page.