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OnlyKey Alternatives

OnlyKey is described as 'open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP' and is an app in the security & privacy category. There are more than 10 alternatives to OnlyKey for a variety of platforms, including Android, iPhone, Linux, Windows and Mac. The best alternative is Authy, which is free. Other great apps like OnlyKey are andOTP, Google Authenticator, Microsoft Authenticator and YubiKey.

OnlyKey alternatives are mainly Authenticator Apps but may also be Password Managers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of OnlyKey.
This page was last updated Feb 5, 2022
  • Mac
  • Windows
  • Linux
  • Android
  • iPhone
  • Chrome OS

OnlyKey is an open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple...

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  1. Authy is a simple way to manage two-factor authentication accounts. Authy supports Gmail, Dropbox, LastPass and thousands of other sites.

  2. It implements Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP). Simply scan the QR code and login with the generated 6-digit code.

  3. Google Authenticator generates 2-step verification codes on your phone.

  4. Sign in is easy, convenient, and secure when you use Microsoft Authenticator. Use your phone, not your password, to log into your Microsoft account. You simply have to enter your username, then approve the notification sent to your phone.

  5. YubiKey

    • Windows
    • Linux
    • Android
    • Android Tablet

    The YubiKey is a one-time password device for secure login with two-factor authentication

  6. As the name should already tell you, Authenticator is a desktop 2FA code generator for Linux desktops, like Ubuntu.

  7. LastPass Authenticator is a two-factor authentication app for your LastPass account and other supported apps. LastPass Authenticator offers simple, secure authentication to your accounts by generating passcodes for login or receiving push notifications for one-tap approval.

  8. Nitrokey is an USB key to enable highly secure encryption and signing of emails and data, as well as login to the Web, networks and computers. Other than ordinary software solutions, the secret keys are always stored securely inside the Nitrokey.

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  9. SoloKeys

    • Mac
    • Windows
    • Linux
    • Android

    Solo is an open source security key, and you can get one at

  10. GTK+ application for securely managing TOTP & HOTP tokens. Content is encrypted on disk using AES256-GCM. Master password derived using PBKDF2 with 100k iterations & SHA512 as hash algorithm. Can import encrypted backups from andOTP & Authenticator+.

Showing 10 of 16 alternatives