Privacy First Architecture

Privacy Policy

Effective Date: August 19, 2026

The Netfox Zero-Data-Collection Pledge

Netfox is fundamentally architected so that your data, payloads, cryptographic keys, and authorization headers never leave your web browser. All processing is executed strictly on the client side.

1. Information We Do Not Collect

When using any Netfox utility (including the cURL Converter, JSON/YAML Formatter, JWT Debugger, Cron Parser, Regex Sandbox, Header Auditor, or HMAC Calculator), we do not collect, transmit, store, or log:

  • Your API tokens, Bearer headers, or secret signing keys.
  • Your JSON, YAML, or raw HTTP payload contents.
  • Your regular expressions, test strings, or evaluated captures.
  • Your crontab schedule expressions.

2. Client-Side Cryptography (WebCrypto)

Cryptographic hashing (HMAC SHA-256, SHA-512) and JWT token validation are executed directly within your browser's V8 or JavaScript runtime environment using the standard W3C Web Cryptography API (window.crypto.subtle). Computations occur entirely in local memory and are discarded when you close or refresh the tab.

3. Third-Party Advertising & Cookies

To maintain free access to our utilities, Netfox displays non-intrusive advertisements served through Google AdSense. Google and third-party vendors may use cookies to serve ads based on prior visits to this or other websites. You can opt out of personalized advertising by visiting Google Ads Settings.

4. Contact & Inquiries

If you have questions regarding our privacy practices or client-side architecture, contact our security team at [email protected].