TOTP Authenticator Generator
Calculate live 30-second 2FA codes from RFC 6238 Base32 secrets compatible with Google Authenticator.
Scan with Google Authenticator, Authy, or 1Password
How to Use TOTP Authenticator Generator
Paste your Base32 secret key (e.g. JBSWY3DPEHPK3PXP).
View the live 6-digit TOTP code and countdown progress ring.
Copy code to verify login prompts.
TOTP Authenticator Generator runs 100% client-side in your web browser. Your data, passwords, keys, and files are processed using the Web Crypto API and never transmitted to any server. Zero telemetry, zero storage, zero cloud processing.
Frequently Asked Questions
How does TOTP work?
Time-based One-Time Passwords (TOTP) compute an HMAC-SHA1 digest combining your shared secret and the current 30-second epoch counter.
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