Privacy Policy & GDPR

Last updated: July 26, 2026 — Version 2.0 Client-Side

1. Privacy Principles & Client-Side Processing

web3qr operates under the absolute commitment of "Privacy by Design". The application runs entirely inside the JavaScript engine of your web browser. No personal data, no cryptocurrency wallet addresses, no Wi-Fi passwords and no vCard details are transmitted to or stored on a remote server.

2. Local Storage (IndexedDB)

The application uses your device's IndexedDB API to save your preferences, your generation history and your templates. This data never leaves your browser and you can erase it at any time from the "My codes" page.

3. Advertising Cookies & Google AdSense

To fund the free service, web3qr uses Google AdSense. An adsbygoogle.js verification snippet is present on every page (required by Google for site review). No ads or advertising cookies are served before your explicit consent via our banner; you can manage your preferences at any time using "Manage cookies" in the footer.

4. Contact & Exercising Your Rights

For any question relating to personal data or to exercise your rights (access, rectification, deletion): my.rooster.fr@gmail.com.