xBarcodexBarcode
RFC 6238 & 2FA RFC 6238 TOTP / RFC 4226 HOTP

2FA / TOTP Authenticator QR Code Generator

Fully compatible with Google Authenticator, 1Password, and Authy. Live 6-digit verification code check.

🔒 100% Client-Side Privacy: Credentials are never transmitted to any server.

2FA / TOTP Credentials

Active TOTP Code (Check against phone)
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Refresh in
30s

Live Output & Export

97 chars
Enter details to generate QR code
Raw Standard Payload String
otpauth://totp/xBarcode%20Cloud:admin%40xbarcode.ai?secret=JBSWY3DPEHPK3PXP&issuer=xBarcode+Cloud
Compliance & Advantages

Why Choose xBarcode?

1

Universal Compatibility: Works with Google Authenticator, 1Password, Microsoft Authenticator, and Bitwarden.

2

Live Synchronized Code: Built-in HMAC-SHA1 engine calculates the active 6-digit code and 30s countdown on-screen.

3

Base32 Sanitization: Automatically strips spaces and invalid characters, preventing configuration errors.

4

Cryptographic Random Secrets: Generates cryptographically secure 16-byte (128-bit) random Base32 keys in one click.

Prepress & Materials

Security & Cold Storage Recovery Guidelines

When creating paper disaster recovery sheets or cold storage vault cards, always print the human-readable Base32 secret alongside the QR code. Use laser printing on archival, waterproof synthetic paper and store in tamper-evident security pouches.

📌 Tip Zero Cloud Leakage: Calculation happens strictly in your browser; secrets never traverse the network.
📌 Tip Clock Drift: TOTP depends on synchronized system clocks. Keep your workstation and mobile device on NTP.
📌 Tip Standard Parameters: Default to 30-second intervals and 6 digits for broad ecosystem interoperability.
F.A.Q.

Frequently Asked Questions

Why does the web 6-digit code differ from my authenticator app?

This is almost always caused by clock drift. TOTP steps every 30 seconds. If either device is off by more than 15 seconds, they will calculate different codes. Ensure both devices have "Set time automatically" enabled in system settings.

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