TOTP Generator

Generate Time-based One-Time Password (TOTP) codes from a Base32-encoded secret. Uses HMAC-SHA1 via WebCrypto (RFC 6238). Runs entirely in your browser.

Secret (Base32)

Digits

Period (seconds)

Enter a Base32 secret above to generate a TOTP code.

Tip: Most authenticator apps use a 30-second period and 6-digit codes. The secret is typically a Base32-encoded string provided during 2FA setup.

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