2FA Code Generator

Generate secure TOTP (Time-based One-Time Password) codes instantly. Paste your secret key and get your 2FA authentication codes with real-time countdown.

Generate Your 2FA Code
Enter your TOTP secret key to generate authentication codes

Usually provided as a Base32 string when setting up 2FA

Secure & Private

All calculations happen in your browser. Your secret keys never leave your device.

Real-time Updates

Automatic code refresh every 30 seconds with visual countdown timer.

Universal Compatible

Works with Google Authenticator, Authy, and all TOTP-compatible apps.

What is Two-Factor Authentication (2FA)?

Two-Factor Authentication (2FA) adds an extra layer of security to your accounts by requiring two different authentication factors: something you know (password) and something you have (your phone or device).

How TOTP Works:

  • TOTP (Time-based One-Time Password) generates unique 6-digit codes
  • Codes change every 30 seconds based on current time
  • Uses a shared secret key between your device and the service
  • Even if someone intercepts a code, it expires quickly

Common Use Cases:

Popular Services
  • Google Accounts
  • Microsoft 365
  • GitHub
  • AWS
  • Dropbox
Authenticator Apps
  • Google Authenticator
  • Microsoft Authenticator
  • Authy
  • 1Password
  • LastPass Authenticator
How to Use This 2FA Code Generator
1

Find Your Secret Key

When setting up 2FA, you'll see a QR code and usually a text version of the secret key. Copy this secret key (it looks like: JBSWY3DPEHPK3PXP).

2

Paste the Secret Key

Enter your secret key in the input field above. The tool will automatically generate your current 2FA code.

3

Use the Generated Code

Copy the 6-digit code and use it to complete your 2FA login. The code refreshes automatically every 30 seconds.

Frequently Asked Questions

Is this tool safe to use?

Yes, this tool is completely client-side. Your secret keys never leave your browser, and all TOTP calculations happen locally on your device.

Why would I need this instead of an authenticator app?

This tool is useful for backup access, testing, or when you need to generate codes on a device that doesn't have your authenticator app installed.

What if my secret key doesn't work?

Make sure you're using the correct Base32 secret key (not the QR code). Remove any spaces and ensure all characters are valid Base32 (A-Z, 2-7).

How accurate are the generated codes?

The codes are generated using the same TOTP algorithm as standard authenticator apps, ensuring 100% compatibility and accuracy.