1. Enter your 2FA secret key or otpauth:// URI, then click "Parse" button
2. The system will generate 6-digit verification codes in real-time, auto-updating every 30 seconds
3. Scan the QR code to add the account to your mobile authenticator app
4. Click "Copy Code" button to quickly copy the current verification code
5. Click "Copy Link" button to share a secure link containing the secret key

Security Note: All calculations are performed locally in your browser, secret keys are not sent to the server.