Generate time-based two-factor authentication (2FA) codes for extra security. All calculations happen locally in your browser.
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About Two-Factor Authentication

Two-factor authentication (2FA) adds an extra layer of protection by requiring a time-based code in addition to your password.

How This Generator Works

This tool uses the standard TOTP algorithm (RFC 6238). A new 6-digit code is generated every 30 seconds using your secret key.

Security Advice

Never share your secret key publicly. This tool does not store or transmit your data — everything runs locally.

FAQs

Is this compatible with Google Authenticator? Yes.
Does it save my secret? No, nothing is stored.
Can I use it offline? Yes, after the page loads.