Open Source Authenticator AlternativesAuthenticators and other similar apps like Authenticator

The best open source alternative to Authenticator is Aegis Authenticator. If that doesn't suit you, our users have ranked more than 50 alternatives to Authenticator and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Authenticator are Proton Authenticator, Ente Auth, Bitwarden Authenticator and 2FA Authenticator (2FAS).

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Authenticator alternatives page was last updated

Alternatives list

  1. Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline. Created by Proton, the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass.

    63 Proton Authenticator alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    • Online
     
  2. Ente Auth icon
     184 likes

    Generates and stores two-factor authentication tokens with device encryption, offers secure cloud backup, multi-device synchronization, offline mode, and import/export through QR, file, or manual input. Migration and restore tools reduce risk of token loss.

    39 Ente Auth alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Flathub
    • F-Droid
    • Flatpak
     
  3. 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*.

    68 2FA Authenticator (2FAS) alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    • Mozilla Firefox
     
  4. FreeOTP icon
     77 likes

    FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols with support for Android (6 or later) and iOS (11 or later). Tokens can be added easily by scanning a QR-code or by manually entering in the token configuration.

    57 FreeOTP alternatives

    Cost / License

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
     
  5. Stratum icon
     23 likes

    A free open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app.

    Cost / License

    Application type

    Platforms

    • Android
    • Android Tablet
    • Android Wear
    • F-Droid
     
  6. Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Microsoft Edge
    • Google Chrome
    • Mozilla Firefox
     
  7. OVault icon
     5 likes

    OVault is a super simple OTP app that lets you view and manage OTPs for all your accounts. Set up OTPs by scanning QR codes with your devices Camera App, or by manually providing the OTP secret to the app.

    Cost / License

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
     
  8. Mauth icon
     7 likes

    Mauth (pronounced Moth) is a Two-Factor Authentication app with support for TOTP and HOTP (coming soon) and compatibility with Google Authenticator.

    Cost / License

    Application type

    Platforms

    • Android
    • F-Droid
     
  9. Tofu generates one-time passwords to help you protect your online accounts. These passwords are used together with your normal password when you sign into services like Google, Facebook, Dropbox, Amazon, and GitHub.

    37 Tofu Authenticator alternatives

    Cost / License

    • Free
    • Open Source (ISC)

    Application type

    Alerts

    • Discontinued

    Platforms

    • iPhone
     
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    1
    Tofu Authenticator vs Authenticator Comments
    Guest
    Positive
    0

    Clean, GNU and super easy to use.

    Review by a new / low-activity user.
    • Tofu Authenticator is Free and Open SourceAuthenticator is also Free and Open Source
  10. Keysmith icon
     5 likes

    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

    Application type

    Platforms

    • Linux
    • KDE Plasma
    • Linux Mobile
    • Flathub
    • Plasma Mobile
    • Flatpak
     
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