TOTP 2FA Live
Sinh mã TOTP 2FA realtime từ Base32 secret, làm việc với Google Authenticator, Authy, Microsoft Authenticator — refresh từng chu kỳ.
One secret per line. Accepted formats: plain Base32 (JBSWY3DPEHPK3PXP), labeled (GitHub: KZXW6YTBOI), or full otpauth:// URL.
These defaults apply to every line. otpauth:// URLs override them per entry.
Secrets stay in your browser. The HMAC signing happens with the Web Crypto API on this device. Nothing is uploaded.