Privacy Policy

1. 100% Client-Side Processing Guarantee

At UtilityHub, we prioritize your data privacy above everything else. Unlike typical online tools, all of our developer tools and calculators process data locally inside your web browser using JavaScript. No text strings, JSON files, JWT tokens, passwords, hashes, or inputs ever leave your device or travel over the internet to our servers, with the sole exception of our One-Time Secret Share tool which uses E2E encrypted buffered storage (detailed in Section 2).

2. One-Time Secret Share Security & E2E Encryption

Our One-Time Secret Share module operates under a strict **Zero-Knowledge, End-to-End Encrypted (E2EE)** architecture:

• Client-Side Encryption: Your secret is encrypted in your browser using AES-256 (via the `crypto-js` library) before being transmitted.
• Zero-Knowledge Keys: The decryption key is appended to the generated link in the URL hash segment (following the `#` symbol). Because web browsers never send URL hashes to web servers during HTTP requests, the decryption key is never transmitted to or seen by our servers. We cannot decrypt your secret.
• Burn-on-Read: The encrypted text is held temporarily in a local storage database file on the server. The microsecond the recipient opens the link, the server reads the payload, returns it to the recipient, and immediately deletes it from the database forever.
• 24-Hour Auto-Expiration: If a link is never opened, the server automatically expires and permanently deletes the record after 24 hours.

3. What Data We Collect

Since all computations are executed in-memory client-side (or E2E encrypted locally in your browser for secret sharing), we do not store, log, or compile any of the readable text inputs you enter into our tools. We do not collect personally identifiable information (PII) through our utility forms. If we implement web analytics in the future to track overall page views, it will only collect anonymous usage metrics (such as browser type and screen dimensions) to help us improve the layout.

4. Cookies and Local Storage

We do not use tracking cookies. Some tools may utilize browser local storage to save your settings preferences (such as your chosen GST slab rates or password configurations) to provide a better user experience when you return, but this is saved strictly on your local browser profile.

5. External Links

Our site may contain links to external reference resources or documentation. We are not responsible for the privacy practices or contents of those external third-party sites.

6. Contact Us

If you have any questions about this Privacy Policy or would like to audit our open-source codebase structures, feel free to review the repository or contact us directly.