Privacy Policy
Last updated: June 20, 2026
Overview
FreeConcreteCalc ("we," "our," or "us") operates the website freeconcretecalc.com. This Privacy Policy explains how we collect, use, and protect information when you visit our website. We are committed to protecting your privacy and being transparent about our data practices.
Information We Do Not Collect
FreeConcreteCalc is designed with privacy in mind. We do not:
- Require you to create an account or sign up
- Collect your name, email address, or phone number
- Store your calculator inputs or results on our servers
- Use tracking cookies to follow you across websites
- Sell or share personal data with third parties
All calculations are performed locally in your browser. Your project dimensions and results never leave your device unless you explicitly share them via the share URL feature.
Information We May Collect
Local Storage
We use your browser's localStorage to save your preferences (dark mode setting, last-used waste factor percentage). This data stays on your device and is never transmitted to our servers.
Analytics
We may use privacy-respecting analytics tools to understand how visitors use our website (page views, popular calculators, device types). These tools do not use cookies, do not collect personally identifiable information, and do not track you across websites.
Advertising
We may display advertisements through Google AdSense or similar advertising networks. These services may use cookies to serve ads based on your prior visits to our website or other websites. You can opt out of personalized advertising by visiting Google Ads Settings.
Server Logs
Our hosting provider (Cloudflare) may collect standard server log data including IP addresses, browser type, referring pages, and timestamps. This data is used for security purposes and is not linked to any personal identity.
Share URL Feature
When you use the "Share" feature, your calculator inputs are encoded into the URL parameters. Anyone with the shared link can see those inputs. No data is stored on our servers — the information lives entirely within the URL itself.
Third-Party Services
Our website may include links to third-party websites, services, or products. We are not responsible for the privacy practices of these external sites. We encourage you to read their privacy policies before providing any personal information.
Children's Privacy
Our website is not directed at children under 13 years of age. We do not knowingly collect personal information from children. Since we don't collect personal information from any users, this is not a concern for our service.
Changes to This Policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last updated" date. Continued use of the website after changes constitutes acceptance of the revised policy.
Contact Us
If you have any questions about this Privacy Policy, please contact us.