Two-Factor Authentication (TOTP)
RFC 6238 compliant six-digit code generator with live 30-second token refresh.
RFC 6238 TOTP
Auto-Generate 2FAENABLED
Automatically decodes the key and refreshes the code every 30 seconds.
Current 6-Digit Code
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Click code or the button to copy pure 6 digits without spaces
30s
In-Memory Guarantee: Secret keys are processed entirely in browser memory. They are never stored in localStorage, cookies, session history, or transmitted over the network.
What the 2FA TOTP Code Generator returns
- •Standard 6-digit TOTP verification codes updated every 30 seconds
- •Animated circular remaining-seconds progress indicator
- •Secret key format validator (Base32 compliance check)
- •Next verification code preview
How to use it
- 1.Enter your Base32 authenticator secret key (or click "Load Demo Secret").
- 2.The 6-digit code generates automatically based on the current standard time step.
- 3.Observe the remaining-seconds ring indicator.
- 4.Click "Copy Code" to paste into your 2FA prompt.
2FA TOTP Code Generator FAQ
Does this follow the RFC 6238 standard?
Yes. It implements the standard RFC 6238 HMAC-based One-Time Password algorithm with SHA-1 and 30-second intervals matching Google Authenticator and Authy.
Are my 2FA secret keys saved to the server?
No. Secret keys remain strictly in ephemeral memory and are never persisted in databases, logs, or analytics.
Why does the countdown reset every 30 seconds?
TOTP codes are mathematically valid for exactly 30-second windows synchronized with UTC time.
Can I use this for real accounts?
Yes, any service providing a manual Base32 setup key can be verified here.