2FA Authenticator
Two-Factor Authentication
Generate time-based one-time passwords (TOTP) for two-factor authentication. All codes are generated locally in your browser.
Code refreshes in
30s
Your 2FA Accounts
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Current Code:
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Digits:6
Period:30s
Algorithm:SHA1
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GitHub
GitHub
Current Code:
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Digits:6
Period:30s
Algorithm:SHA1
Backup Codes
Backup codes allow you to access your account if you lose your authenticator device. Save these codes in a secure place.
No backup codes generated
About 2FA
Two-Factor Authentication adds an extra layer of security to your accounts.
How It Works:
- Scan QR code or enter secret key
- Authenticator generates time-based codes
- Enter code when logging in
Security Tips:
- Never share your secret keys
- Save backup codes securely
- Use different secrets for each account
Quick Actions
Important Security Notice
This tool generates codes locally in your browser. For production use, consider using dedicated authenticator apps like Google Authenticator, Authy, or Microsoft Authenticator. Never use this tool for sensitive accounts without proper security measures.