Secure your OTP Keys.

  • otp-icon

    HENNGE OTP Generator

    HENNGE OTP Generator is a virtual device application for multi-factor authentication (MFA), so-called two-step verification, which generates time-based one-time passwords (OTP) complying with RFC 6238 (TOTP: Time-Based One-Time Password Algorithm).

    Available on the App Store

  • Additional Instant Security

    Key Image

    HENNGE OTP Generator has it's own PIN screen which prevents strangers or children from casually accessing your OTPs, even when you are physically away from your phone.

  • Tested for various platforms

    We tested TOTP QR codes from, and believe it works with:

    • - Amazon Web Services (AWS Multi-Factor Authentication)
    • - (Two-Factor Authentication)
    • - Dropbox (Two-step verification)
    • - Evernote (Two-Step Verification)
    • - Facebook
    • - GitHub (Two-factor Authentication)
    • - Google Accounts (2-step verification)
    • - Google Apps for Business (2-step verification)
    • - HENNGE One(HENNGE Access Control OTP verification)
    • - Microsoft Accounts (Two-Step Verification)
    • - Tumblr (Two-Factor Authentication)
    • - Yahoo! JAPAN(Yahoo! JAPAN one time password)


  • - To make OTP work, make sure your clock is in sync.
  • - Only supports 6-digits OTPs.

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