Open Source Authy Alternatives Filtered by 'Time-based One-time Password'

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

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Alternatives list

  1. Aegis Authenticator icon

    Aegis Authenticator

     263 likes

    Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.

    51 Aegis Authenticator alternatives

    Cost / License

    Application type

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Aegis Authenticator screenshot 1
     
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    8
    Aegis Authenticator vs Authy Comments
    Top Positive Comment
    tangycandy
    1

    It's open source and it works great!

    Top Negative Comment
    rustPunk
    -2

    Leaving a negative comment, not because Aegis is bad, but because it's still not a good competitor/alternative to everything Authy offers in terms of convenience (iOS app, and desktop/Windows app). With these two, Aegis would NO DOUBT be the best out there.

    Violeta Carrasco
    Positive
    0

    I chose it because it is private, open, simpler and versatile, in my opinion

    3 of 8 comments
    • Aegis Authenticator is Free and Open SourceAuthy is Free and Proprietary
    • Aegis Authenticator is CustomizableAuthy is not according to our users
  2. Ente Auth icon

    Ente Auth

     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
    Ente Auth screenshot 1
     
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    3
    Ente Auth vs Authy Comments
    kurifoxen
    Positive
    1

    Ente is miles better than most 2fa services atm and is completely open source and ad free

    Not to mention it now has proper cross device support with its own desktop application, following authys own 2fa being discontinued

    Really happy with this dev team imo the best 2fa service you can get atm

    Medi22
    Positive
    1

    FOSS alternative to Authy with mobile and website token sync. Can also import/export keys. Only question is how long Ente will keep the service free.

    nayote
    Positive
    2

    Open source, desktop app & mobile app

    • Ente Auth is Free and Open SourceAuthy is Free and Proprietary
    • Ente Auth is Security-focusedAuthy is not according to our users
  4. Proton Authenticator icon

    Proton Authenticator

     99 likes

    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.

    62 Proton Authenticator alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    • Online
    Proton Authenticator screenshot 1
     
  5. Bitwarden Authenticator icon

    Bitwarden Authenticator

     63 likes

    Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts.

    Cost / License

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    Bitwarden Authenticator screenshot 1
     
  6. 2FA Authenticator (2FAS) icon

    2FA Authenticator (2FAS)

     48 likes

    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
    2FA Authenticator (2FAS) screenshot 1
     
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    1
    2FA Authenticator (2FAS) vs Authy Comments
    altmagw3k
    Positive
    0

    Simple & pretty interface, does the job with no bullshit. Option to cloud sync with Google account, not mandatory.

    • 2FA Authenticator (2FAS) is Free and Open SourceAuthy is Free and Proprietary
  7. FreeOTP icon

    FreeOTP

     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
    FreeOTP screenshot 1
     
  9. Stratum icon

    Stratum

     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
    Stratum screenshot 1
     
  10. Authenticator Extension icon

    Authenticator Extension

     19 likes

    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
    Authenticator Extension screenshot 1
     
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    1
    Authenticator Extension vs Authy Comments
    TRShadow
    Positive
    1

    It is one of the best 2FA alternatives that can be used on a PC. Authy is doing this on mobile because it does not have mobile support. On the PC, the Authenticator is the best option. Cloud support, encrypted backup, and a clipboard have features such as copying. There is also an automatic filling option for 2FA fields, but in some cases, it fills information on other fields.

    Review by a new / low-activity user.
    • Authenticator Extension is Free and Open SourceAuthy is Free and Proprietary
  11. OnlyKey icon

    OnlyKey

     14 likes

    OnlyKey is an open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP.

    Cost / License

    • Paid
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    OnlyKey screenshot 1
     
  12. OVault icon

    OVault

     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
    OVault screenshot 1
     
  13. GNOME Authenticator icon

    GNOME Authenticator

     11 likes

    Gnome Authenticator is a desktop 2FA code generator for Linux desktops, like Ubuntu.

    Cost / License

    Application type

    Platforms

    • Linux
    • Linux Mobile
    • Flathub
    • GNOME
    GNOME Authenticator screenshot 1
     
  14. Tofu Authenticator icon

    Tofu Authenticator

     11 likes

    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.

    Cost / License

    • Free
    • Open Source (ISC)

    Application type

    Alerts

    • Discontinued

    Platforms

    • iPhone
    Tofu Authenticator screenshot 1
     
12 of 31 Authy alternatives