Alternatives to Yubico Authenticator

An app that shows two-factor codes from OATH credentials stored on a YubiKey. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as Yubico Authenticator.

  • Ente Auth

    Open-source two-factor authenticator with end-to-end encrypted backups.

    FreeOpen sourceWindowsmacOSLinuxAndroidiOSWeb

    Ente Auth keeps codes in software on desktop, mobile and web with free end-to-end encrypted cloud backup, and is open source, removing the need for a YubiKey.

  • Google Authenticator

    Google's mobile app that generates one-time verification codes for two-step verification.

    FreeProprietaryAndroidiOS

    Google Authenticator stores codes on an Android or iOS phone rather than hardware, with optional Google Account sync, and has no desktop app.

  • Aegis Authenticator

    An encrypted two-factor authentication app for Android with real backups and imports from every other authenticator.

    FreeOpen sourceAndroid

    Aegis Authenticator stores codes in an encrypted open-source vault on Android with automatic backups, instead of on a hardware key, but runs only on Android.

  • 2FAS

    Open-source authenticator app with browser-extension push approvals.

    FreeOpen sourceAndroidiOSBrowser extension

    2FAS is an open-source Android and iOS app with browser-extension push approvals and encrypted cloud backups, storing secrets on the phone rather than a YubiKey.

  • Proton Authenticator

    A free two-factor authentication app from Proton with end-to-end encrypted sync between your devices and no advertising.

    FreeOpen sourceWindowsLinuxAndroid

    Proton Authenticator is open source on Windows, Linux and Android, syncing codes with end-to-end encryption through a Proton account instead of a hardware key.

  • Authy

    Mobile two-factor authenticator with encrypted cloud backup.

    FreeProprietaryAndroidiOS

    Authy keeps codes on Android or iOS with encrypted cloud backup and multi-device sync, has no desktop app, and ties recovery to a phone number.

  • Microsoft Authenticator

    Microsoft's mobile authenticator app for multi-factor and passwordless sign-in to personal and work accounts.

    FreeProprietaryAndroidiOS

    Microsoft Authenticator stores codes on an Android or iOS phone and adds passwordless sign-in for Microsoft accounts, but has no desktop app.

  • FreeOTP

    An open-source two-factor authentication app for Android and iOS that generates one-time codes.

    FreeOpen sourceAndroidiOS

    FreeOTP is a free open-source authenticator for Android and iOS that stores codes on the phone rather than on hardware, with no desktop app.

Also worth comparing

These listings name Yubico Authenticator as their own alternative, so the relationship runs both ways.

  • Authenticator

    A GNOME desktop app that generates two-factor authentication codes using the TOTP and HOTP standards.

    FreeOpen sourceLinux

    Yubico Authenticator keeps secrets on a YubiKey rather than the computer, works on desktop and mobile, is closed source and requires buying the hardware key.

  • OTPClient

    A GTK4 desktop app for managing TOTP and HOTP two-factor codes in encrypted databases.

    FreeOpen sourceLinuxCommand line

    Yubico Authenticator stores codes on a YubiKey instead of an encrypted file, works on desktop and mobile, is closed source and needs the hardware key.

  • Step Two

    A two-step verification code app for iPhone, iPad, Apple Watch and Mac with iCloud backup.

    PaidProprietarymacOSiOSBrowser extension

    Yubico Authenticator keeps secrets on a YubiKey instead of iCloud, works on desktop and mobile including Windows and Linux, and requires the hardware key.

Similar software

Related functionality, not a direct replacement.