Privacy Policy

LeetFolio is committed to protecting your privacy. This policy explains how our Chrome extension handles your data.

1. No Data Collection

LeetFolio does not collect, store, or transmit any of your personal data to any external servers. We do not use any backend servers, analytics tracking, or telemetry.

2. Local Processing

All data processing, including algorithmic complexity analysis and spaced repetition scheduling, happens entirely within your local browser environment. Your code and progress data are stored locally using Chrome's storage API and IndexedDB.

3. Third-Party Integrations

LeetFolio interacts with the following third-party services only at your explicit request:

• GitHub: When you authorize the extension via OAuth, it communicates directly with the GitHub API to push your code. Your GitHub Personal Access Token is stored securely in your browser's local storage and is never sent to us or any other party.
• AI Providers (Optional): If you choose to enable AI explanations and provide your own API key (for Anthropic or OpenAI), the extension sends your code to those respective services to generate explanations. This is entirely opt-in.

4. Data Sovereignty

You have full control over your data. You can disconnect your GitHub account or delete the extension at any time, which will remove all locally stored data.

5. Cookies and Tracking

LeetFolio does not use cookies, web beacons, or any form of tracking technology. We do not track your browsing behavior or create usage analytics.

6. Data Retention

Your data is retained locally on your device for as long as the extension is installed. When you uninstall LeetFolio or clear your browser data, all locally stored information is removed. Data sent to third-party services (GitHub, AI providers) is subject to their respective privacy policies.

7. User Rights and Choices

You have full control over your data:

• You can revoke GitHub authorization at any time through your GitHub settings
• You can disable AI features by not providing API keys
• You can export or delete your locally stored data through the extension settings
• You can uninstall the extension to permanently remove all local data

8. Security

Since all processing happens locally in your browser, your data is protected by your browser's security measures. When communicating with external services (GitHub, AI providers), encrypted HTTPS connections are used. Your GitHub Personal Access Token is encrypted and stored securely in your browser's local storage.

9. Changes to This Policy

We may update this privacy policy to reflect changes in our practices or for other operational, legal, or regulatory reasons. We will notify users of material changes by updating the "Last Updated" date at the top of this policy. Your continued use of LeetFolio after such modifications constitutes your acceptance of the updated policy.

10. Contact Us

If you have questions or concerns about this privacy policy or our privacy practices, please contact us through our GitHub repository by opening an issue.

11. Open Source

As an open-source project, you are encouraged to review the source code to verify our privacy claims.