Open Source 2FA Authenticator (2FAS) AlternativesAuthenticators and other similar apps like 2FA Authenticator (2FAS)

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

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2FA Authenticator (2FAS) 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.

    62 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
     
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    2
    Ente Auth vs 2FA Authenticator (2FAS) Comments
    kurifoxen
    Positive
    0

    Ente is the best open source 2fa app/program out there. Its actively developed and is the only 2fa service with i desktop app as well, so if you lose your phone you can also login through other devices

    Sam Lander
    Negative
    -1

    Requires a log in, having 2fa on multiple types of devices like the same laptop you are logging into is more secure, developed in a country with strong anti-privacy laws.

    • Ente Auth is Free and Open Source2FA Authenticator (2FAS) is also Free and Open Source
    • Ente Auth is Security-focused2FA Authenticator (2FAS) is not according to our users
  3. 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
     
  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
     
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    1
    FreeOTP vs 2FA Authenticator (2FAS) Comments
    Guest
    Positive
    0

    Needed a FOSS alternative to the Google Authenticator app to access my company's corporate G-suite instance. This is a simple app and works like a charm!

    Review by a new / low-activity user.
    • FreeOTP is Free and Open Source2FA Authenticator (2FAS) is also Free and Open Source
  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. Nitrokey icon
     21 likes

    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

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
     
  8. 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
     
  9. 2FAGuard icon
     4 likes

    Encrypted Windows app for managing 2FA codes with AEGIS-256 and Argon2id, supporting Windows Hello, portable use, multilingual interface, token import/export, QR code/manual entry, generic TOTP, local storage, and dark mode interface for enhanced security.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Windows
     
  10. 2FAuth icon
     1 like

    2FAuth is a web based self-hosted alternative to One Time Passcode (OTP) generators like Google Authenticator, designed for both mobile and desktop.

    25 2FAuth alternatives

    Cost / License

    Application type

    Platforms

    • Self-Hosted
    • Docker
    • Cloudron
     
  11. SoloKeys icon
     10 likes

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

    Cost / License

    • Paid
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
     
12 of 32 2FA Authenticator (2FAS) alternatives