TOTP Generator

Browser-Only

Generate time-based one-time passwords from a base32 secret.

Base32 secret

Standard 30-second TOTP with 6 digits (HMAC-SHA1).

Enter a valid base32 secret to generate a code

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Quick answers to common questions

What algorithm is used?+

Standard TOTP: HMAC-SHA1, 30-second period, 6 digits (RFC 6238).

What secret format?+

Base32-encoded secret (as shown in authenticator app setup QR codes).

Is my secret stored?+

No. The secret stays in your browser and is never transmitted.

Test secret?+

JBSWY3DPEHPK3PXP is a common test secret that produces rotating codes.

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