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OpenSK Alternatives

OpenSK is described as 'open-source implementation for security keys written in Rust that supports both FIDO U2F and FIDO2 standards' and is an app in the development category. There are more than 10 alternatives to OpenSK for a variety of platforms, including Android, iPhone, Android Tablet, iPad and Linux. The best alternative is andOTP, which is both free and Open Source. Other great apps like OpenSK are Google Authenticator, YubiKey, Nitrokey and SoloKeys.

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OpenSK iconOpenSK
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  • FreeOpen Source
  • Self-Hosted

OpenSK is an open-source implementation for security keys written in Rust that supports both FIDO U2F...

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  1. andOTP icon

    andOTP

    • Android
    • Android Tablet
    • F-Droid
    36 alternatives to andOTP 

    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.

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    Features
    1.  Encrypted BackupandOTP uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
    2.  Dark ModeandOTP supports dark mode for comfortable usage in low light conditions.
    3.  Time-based One-time PasswordandOTP has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
    4.  Two-factor AuthenticationandOTP supports two-factor authentication (2FA).
    5.  Privacy focusedandOTP is considered a privacy friendly alternative.
    6.  Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
    Main (Light theme)
    Settings (Light theme)
  2. Google Authenticator icon

    Google Authenticator

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Android Wear
    63 alternatives to Google Authenticator 

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

    Enable 2-step verification to protect your account from hijacking by adding another layer of security. With 2-step verification signing in will require a code generated by the Google Authenticator app in add.

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    Features
    1.  Two-factor AuthenticationGoogle Authenticator supports two-factor authentication (2FA).
    2.  Time-based One-time PasswordGoogle Authenticator has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
    3.  Multiple Account supportGoogle Authenticator support multiple accounts without the need to logout and login
    Screenshot
    Screenshot


  3. YubiKey icon

    YubiKey

    • Windows
    • Linux
    • Android
    • Android Tablet
    22 alternatives to YubiKey 

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

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    Features
    1.  Two-factor AuthenticationYubiKey supports two-factor authentication (2FA).
      Screenshot
      Screenshot
    • Nitrokey icon

      Nitrokey

      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      10 alternatives to Nitrokey 

      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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      Features
      1.  Time-based One-time PasswordNitrokey has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
      2.  Two-factor AuthenticationNitrokey supports two-factor authentication (2FA).
      3.  PGP EncryptionNitrokey supports PGP, an encryption system used for sending encrypted emails and files.
      4.  OpenPGPNitrokey supports OpenPGP, a standard of PGP encryption that is open-source for public use.
    • SoloKeys icon

      SoloKeys

      • Mac
      • Windows
      • Linux
      • Android
      13 alternatives to SoloKeys 

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

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      Features
      1.  Two-factor AuthenticationSoloKeys supports two-factor authentication (2FA).
        Screenshot


      • Keysmith - 2FA icon

        Keysmith - 2FA

        • Linux
        • KDE
        • Linux Mobile
        • FLATHUB
        • Plasma Mobile
        60 alternatives to Keysmith - 2FA 

        Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).

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        Features
        1.  Two-factor AuthenticationKeysmith - 2FA supports two-factor authentication (2FA).
        2.  Time-based One-time PasswordKeysmith - 2FA has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
          Screenshot
        • Authorizer icon

          Authorizer

          22 alternatives to Authorizer 

          A Password Manager for Android with Auto-Type over USB and Bluetooth, OTP and much more.

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          Features
          1.  Two-factor AuthenticationAuthorizer supports two-factor authentication (2FA).
        • Krypton icon

          Krypton

          • FreeOpen Source
          • iPhone
          • iPad
          13 alternatives to Krypton 

          Krypton implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor authentication on the web, using just your phone.

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          Features
          1.  Two-factor AuthenticationKrypton supports two-factor authentication (2FA).
            Screenshot
            Screenshot
          • 2FA Authenticator (2FAS) icon

            2FA Authenticator (2FAS)

            • Android
            • iPhone
            • Android Tablet
            • iPad
            47 alternatives to 2FA Authenticator (2FAS) 

            2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates Time-based One-time Passwords (TOTP) and PUSH authentication*.

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            Features
            1.  Time-based One-time Password2FA Authenticator (2FAS) has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
            2.  Two-factor Authentication2FA Authenticator (2FAS) supports two-factor authentication (2FA).
            3.  Multiple Account support2FA Authenticator (2FAS) support multiple accounts without the need to logout and login
            Screenshot
            Screenshot
          • AuthLite icon

            AuthLite

            • FreeProprietary
            • iPhone
            • iPad
            7 alternatives to AuthLite 

            This app is created for use with the YubiKey NFC and NEO to copy One-time-passwords (OTPs) from a YubiKey into the iOS clipboard.

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            This app doesn't have any features at the moment.
            Screenshot
          Showing 10 of 12 alternatives
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