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Krypton Alternatives

Krypton is described as 'implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor authentication on the web, using just your phone' and is an app in the security & privacy category. There are more than 10 alternatives to Krypton for a variety of platforms, including Android, Android Tablet, iPad, iPhone and Linux. The best alternative is Authy, which is free. Other great apps like Krypton are andOTP, Google Authenticator, YubiKey and SoloKeys.

Krypton 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 Krypton.
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Krypton iconKrypton
  2
  • FreeOpen Source
  • iPhone
  • iPad

Krypton implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor...

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  1. Authy icon

    Authy

    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad

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

    ⚫︎ Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
    ⚫︎ Two-factor AuthenticationAuthy supports two-factor authentication (2FA).
    ⚫︎ Time-based One-time PasswordAuthy has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
    ⚫︎ Sync Across DevicesAuthy can sync your data across devices like your phone, desktop and tablet
    ⚫︎ Multiple Account supportAuthy support multiple accounts without the need to logout and login
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    Screenshot
  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.

    ⚫︎ Dark ModeandOTP supports dark mode for comfortable usage in low light conditions.
    ⚫︎ Time-based One-time PasswordandOTP has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
    ⚫︎ Two-factor AuthenticationandOTP supports two-factor authentication (2FA).
    ⚫︎ Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
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    Main (Light theme)


  3. Google Authenticator icon

    Google Authenticator

    • FreeProprietary
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Android Wear

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

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

    YubiKey

    • Windows
    • Linux
    • Android
    • Android Tablet

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

    ⚫︎ Two-factor AuthenticationYubiKey supports two-factor authentication (2FA).
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    Screenshot
  5. SoloKeys icon

    SoloKeys

    • Mac
    • Windows
    • Linux
    • Android

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

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


  6. Keysmith - 2FA icon

    Keysmith - 2FA

    • FreeOpen Source
    • Linux
    • KDE
    • Linux Mobile
    • FLATHUB
    • Plasma Mobile

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

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

    Authorizer

    • FreeOpen Source
    • Android

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

    ⚫︎ Two-factor AuthenticationAuthorizer supports two-factor authentication (2FA).
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  8. TOTP Authenticator makes it simple and easy to enable 2-factor authentication on your accounts. The app provides option to backup data offline or on the cloud. Features like Push to Chrome, dark theme, custom icons and widgets make the app stand out.

    ⚫︎ Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
    ⚫︎ Dark ModeTOTP Authenticator supports dark mode for comfortable usage in low light conditions.
    ⚫︎ Biometric AuthenticationLog in or unlock your device using your fingerprint or face recognition
    ⚫︎ CustomizableTOTP Authenticator is easy to customize with themes or similar features.
    ⚫︎ Time-based One-time PasswordTOTP Authenticator has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
    ⚫︎ Two-factor AuthenticationTOTP Authenticator supports two-factor authentication (2FA).
    ⚫︎ Works OfflineTOTP Authenticator can be used without the need to connect to the internet.
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    Screenshot
  9. VoiceProtect icon

    VoiceProtect

    • Self-Hosted

    VoiceProtect protects against password compromises, SIM swaps, and other two-factor authentication (“2FA”) vulnerabilities. It’s the first voice authentication solution for consumers and SMBs, where voice biometrics serves as a third factor.

    ⚫︎ Two-factor AuthenticationVoiceProtect supports two-factor authentication (2FA).
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  10. OpenSK icon

    OpenSK

    • FreeOpen Source
    • Self-Hosted

    OpenSK is an open-source implementation for security keys written in Rust that supports both FIDO U2F and FIDO2 standards.

    ⚫︎ Two-factor AuthenticationOpenSK supports two-factor authentication (2FA).
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Showing 10 of 13 alternatives