2FA Code Generator - Two-Factor Authentication
Generate TOTP (Time-based One-Time Password) codes and QR codes for authenticator apps like Google Authenticator and Authy.
🔐 Generate 2FA Code
What is Two-Factor Authentication (2FA)?
Two-Factor Authentication (2FA) is a security method that requires users to provide two different verification factors to access an account. This adds an extra layer of security beyond just a password, making it significantly harder for attackers to gain unauthorized access.
How Does 2FA Work?
When you enable 2FA on an account, you'll need to provide:
- Something you know: Your password
- Something you have: A mobile device with an authenticator app
TOTP (Time-based One-Time Password)
TOTP is a standard 2FA method that generates time-limited codes. These codes:
- Change every 30 seconds automatically
- Are unique for each login attempt
- Can't be reused after expiration
- Work offline (no internet required)
- Are synced across all your devices
Supported Authenticator Apps
- Google Authenticator: Free, widely used authenticator app
- Authy: Cloud backups, multiple device support
- Microsoft Authenticator: Built-in with Microsoft accounts
- 1Password: Password manager with built-in authenticator
- LastPass Authenticator: Integrated with password manager
Security Benefits
| Feature | With 2FA | Without 2FA |
|---|---|---|
| Password Theft | Protected | Vulnerable |
| Phishing Attacks | Protected | Vulnerable |
| Account Takeover | Protected | Vulnerable |
| Data Breaches | Partially Protected | Vulnerable |
Security Best Practice: Always enable 2FA on important accounts like email, banking, and social media. Keep backup codes in a safe place.
Related Security Tools
2FA Generator FAQs
2FA (Two-Factor Authentication) adds an extra security layer beyond passwords. TOTP (Time-based One-Time Password) generates temporary codes that change every 30 seconds, used by apps like Google Authenticator and Authy for secure login verification.
Generate a secret key, scan the QR code with an authenticator app (Google Authenticator, Authy, Microsoft Authenticator), and enter the 6-digit code to verify. Save backup codes in case you lose access to your device.
Yes! 2FA significantly improves security by requiring both something you know (password) and something you have (phone with authenticator app). Even if your password is compromised, attackers can't access your account without the 2FA code.