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Privacy Policy for D³ - Drive Directory Duplicator

Effective Date: June 30, 2026

D³ - Drive Directory Duplicator ("we", "our", "us") is committed to protecting your privacy. This Privacy Policy describes how we handle user data in the D³ Chrome Extension.

1. Single Purpose and Core Functionality

D³ is a browser utility designed for the single, narrow purpose of recursively copying and duplicating folder structures within Google Drive.

2. Personal and Sensitive User Data We Access

To fulfill its single purpose, the extension requests access to:

  • Authentication Information: We access the user's Google Drive OAuth2 access token to authorize API requests directly to Google Drive.
  • Personally Identifiable Information: We access the logged-in user's Google email address for the sole purpose of displaying the account connection status in the extension user interface.

3. Data Collection, Storage, and Sharing

  • Zero Collection: We do not collect, harvest, or store your personal data, credentials, folders, or files.
  • Zero Transmission: Your personal data and files are never transmitted to any third-party server or external database. All API calls are sent directly from your local browser sandbox to the official Google APIs.
  • Local Storage: Folder IDs and copy status are saved locally in your browser's sandboxed storage (chrome.storage.local) to persist states across popup opens. You can clear this data at any time by clicking "Sign Out" in the extension popup.

4. Policy Compliance

  • We do not sell or transfer user data to third parties.
  • We do not use or transfer user data for any purposes unrelated to the single purpose of folder duplication.
  • We do not use or transfer user data to determine creditworthiness or for lending purposes.

5. Data Protection Mechanisms

D³ implements the following measures to protect sensitive user data:

  • Encrypted Communication: All communication between the extension and Google's servers occurs exclusively over HTTPS/TLS-encrypted connections. No unencrypted data is ever transmitted.
  • Browser Sandbox Isolation: The extension operates entirely within Chrome's sandboxed extension environment. OAuth tokens and local state are stored in chrome.storage.local, which is isolated from other extensions and websites.
  • No Server-Side Infrastructure: D³ has no backend server, database, or external data store. There is no server-side component that processes, logs, or retains user data in any form.
  • Minimal Token Scope: OAuth access tokens are used solely for authorized Google Drive API requests and are managed by Chrome's built-in identity API (chrome.identity). Tokens are never logged, exported, or persisted outside the browser's secure token storage.
  • No Persistent Credentials: The extension does not store passwords, refresh tokens, or long-lived credentials. Signing out immediately revokes token access and clears all locally stored data.

6. Data Retention and Deletion

  • Retention: No user data is retained beyond the current browser session's local storage. Folder IDs and copy status are stored temporarily in chrome.storage.local for functionality purposes only.
  • Deletion: Users can delete all locally stored data at any time by clicking "Sign Out" in the extension popup or by uninstalling the extension. No residual data remains on any external system.

7. Contact

If you have any questions regarding this Privacy Policy, please contact the developer via the Chrome Web Store support page.