Privacy Policy
1. Our Commitment to Privacy
The Address Format Validator is a fully client-side web utility designed to check Bitcoin, Ethereum, and Solana address formats. We prioritize your privacy above all else. Because every validation process runs entirely in your browser using JavaScript, we do not collect, store, or transmit any personal information or address data. This policy explains our privacy practices clearly and transparently.
2. No Data Collection
We intentionally designed this tool to operate without gathering any user data. Specifically, we do not collect:
- Personal information such as names, email addresses, or IP addresses.
- Cryptocurrency addresses you input for validation—these are processed locally and never leave your device.
- Usage statistics including page views, session duration, or device details.
- Analytics or tracking data through cookies, pixels, or third-party services.
All checksum calculations, regex matching, and auto-detection logic execute exclusively on your computer. No information is sent to any server, including ours.
3. How the Tool Operates
When you use the validator:
- Input handling: Addresses are entered directly into the browser interface and processed using pure JavaScript functions.
- No network requests: Validation results appear instantly without external API calls or data transmission.
- Local-only dependencies: Required cryptographic functions (SHA-256, Keccak-256, Bech32 polymod) run in-browser via lightweight implementations or minimal CDN scripts that do not track users.
Your browser may temporarily cache page assets for performance, but no persistent storage of your inputs occurs.
4. Third-Party Services
We use only essential, privacy-respecting CDN resources (Bootstrap CSS and a small Keccak-256 library) that serve static files without tracking. No advertising, analytics, or social media integrations are present.
5. Cookies and Tracking
This site is completely stateless and cookie-free. We do not set cookies, use localStorage for tracking, or employ any fingerprinting techniques.
6. Security Considerations
Since no data leaves your device, the primary security responsibility lies with your browser and operating system. We recommend keeping your browser updated and using the tool over HTTPS (provided automatically via GitHub Pages).
7. Children's Privacy
The tool is not directed at children under 13. We do not knowingly collect any data from children.
8. Changes to This Policy
We may update this Privacy Policy if the tool's functionality changes significantly. Any revisions will be posted here with an updated effective date.
9. Contact
Questions about this policy can be directed through the project's GitHub repository issues page.
Your privacy is protected by design—nothing you enter is ever seen by us or anyone else.