TOTP 2FA 实时计算
用 Base32 secret 实时生成 TOTP 2FA 验证码,兼容 Google Authenticator、Authy、Microsoft Authenticator,周期内自动刷新。
AK
appkiro.comOne 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.