TOTP / 2FA Code Generator

Generate standard TOTP (RFC 6238) codes from a Base32 secret — the same algorithm used by Google Authenticator and Authy — entirely client-side.

Base32 secret

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Refreshes in 30s

This generates standard TOTP codes (RFC 6238, same algorithm as Google Authenticator or Authy) entirely in your browser using the secret above — nothing is sent anywhere. Paste in a secret from a 2FA setup screen to generate matching codes, or use "New secret" to create one for testing.

Example input

JBSWY3DPEHPK3PXP

Example output

123456 (refreshes every 30s)