2fa

TOTP Code Generator

Generate live 2FA (TOTP) codes from a base32 secret — RFC 6238.

● runs in your browser
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refreshes in 30s · click code to copy

Computes RFC 6238 TOTP codes locally (HMAC-SHA1, 30s, 6 digits). Useful for testing 2FA integrations — your secret never leaves the browser.