Security
TOTP Generator
Generate time-based one-time passwords from a base32 secret.
Standard 30-second TOTP with 6 digits (HMAC-SHA1).
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Frequently Asked Questions
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.