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, iPad, Linux and Android Tablet apps. The best OpenSK alternative is 2FA Authenticator (2FAS), which is both free and Open Source. Other great apps like OpenSK are Google Authenticator, andOTP, YubiKey and Nitrokey.

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Alternatives list

  1. 2FA Authenticator (2FAS) icon

    2FA Authenticator (2FAS)

     48 likes
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    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*.

    69 2FA Authenticator (2FAS) alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    • Mozilla Firefox
    2FA Authenticator (2FAS) screenshot 1
    2FA Authenticator (2FAS) screenshot 2
    2FA Authenticator (2FAS) screenshot 3
     

    • 2FA Authenticator (2FAS) is the most popular Android, iPhone, iPad & Android Tablet alternative to OpenSK.

    • 2FA Authenticator (2FAS) is the most popular Open Source & free alternative to OpenSK.

    • 2FA Authenticator (2FAS) is Free and Open SourceOpenSK is also Free and Open Source
    • 2FA Authenticator (2FAS) is Privacy focused and LightweightOpenSK is not according to our users
  4. andOTP icon

    andOTP

     78 likes
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    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.

    56 andOTP alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Android
    • Android Tablet
    Main (Light theme)
    Settings (Light theme)
    Backup (Light theme)
     
  5. Ad
    Screenshot
    Nitrokey icon
    Nitrokey

    Provides robust USB-based encryption, digital signing, and secure login with hardware-level secret key storage, user-defined PIN, tamper-proof smart card, open source design, email and data encryption compatibility, virus protect...

    https://www.nitrokey.com
    Learn More
  6. YubiKey icon

    YubiKey

     34 likes
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    The multi-protocol security key offers the highest assurance, protecting devices with passwordless workflows and strong 2FA against phishing. It plugs into computers, tablets, and mobile devices, integrates PIN or biometric for identity verification, and reduces helpdesk costs.

    26 YubiKey alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Google Chrome
    YubiKey screenshot 1
     

    • YubiKey is the most popular Windows, Mac & Linux alternative to OpenSK.

    • YubiKey is the most popular commercial alternative to OpenSK.

    • YubiKey is Paid and ProprietaryOpenSK is Free and Open Source
  7. Nitrokey icon

    Nitrokey

     21 likes
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    Provides robust USB-based encryption, digital signing, and secure login with hardware-level secret key storage, user-defined PIN, tamper-proof smart card, open source design, email and data encryption compatibility, virus protection, and multi-platform support.

    Cost / License

    • Pay once
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    Nitrokey screenshot 1
     
  8. KeyVault icon

    KeyVault

     2 likes
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    OTP authenticator app for managing your 2FA / OTP codes on iPhone, iPad, Mac and Apple Watch.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Linux Mobile
    • Flathub
    • Flatpak
    KeyVault screenshot 1
    KeyVault screenshot 2
    KeyVault screenshot 3
     
  10. Keysmith icon

    Keysmith

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

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    • KDE Plasma
    • Linux Mobile
    • Flathub
    • Plasma Mobile
    • Flatpak
    Keysmith screenshot 1
     
  11. SoloKeys icon

    SoloKeys

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

    Cost / License

    • Pay once
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    SoloKeys screenshot 1
     
  12. Authorizer icon

    Authorizer

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

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Android
     
  13. Zoho OneAuth icon

    Zoho OneAuth

     2 likes
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    Secure your Zoho Account with easy-to-use, multi-factor authentication. Because hackers won't give you a second chance.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    Zoho OneAuth screenshot 1
    Zoho OneAuth screenshot 2
    Zoho OneAuth screenshot 3
     
  14. Krypton icon

    Krypton

     2 likes
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    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.

    Cost / License

    • Free
    • Open Source

    Platforms

    • iPhone
    • iPad
    Krypton screenshot 1
     
  15. AuthLite icon

    AuthLite

     1 like
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    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.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • iPhone
    • iPad
    AuthLite screenshot 1
     
12 of 13 OpenSK alternatives