Open Source Google Authenticator Alternatives for Windows

Google Authenticator is not available for Windows but there are plenty of alternatives that run on Windows with similar functionality. The best open source Windows alternative is Bitwarden. If that doesn't suit you, our users have ranked more than 100 alternatives to Google Authenticator and many of them are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to Google Authenticator are KeePass, Ente Auth, Proton Authenticator and KeeWeb.

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Alternatives
Google Authenticator alternatives page was last updated

Alternatives list

  1. SoloKeys icon
     10 likes

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

    Cost / License

    • Paid
    • Open Source

    Application type

    Since

    • Since 2019

    Platforms

    • Windows
    • Mac
    • Linux
    • Android
    Good alternative?
     
  2. Hermes OTP icon
     2 likes

    Hermes offers a straightforward solution for overseeing two-factor authentication accounts (SHA1), providing support for a wide range of platforms, including Gmail, Dropbox, and thousands of other websites.

    Cost / License

    • Free
    • Open Source (MIT)

    Since

    • Since 2023

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  3.  1 like

    Trustworthy, encrypted, command-line TOTP/HOTP authenticator app with import functionality.

    Cost / License

    Application type

    Since

    • Since 2025

    Platforms

    • Windows
    • Mac
    • Linux
    • Rust
    • Homebrew
    Good alternative?
     
  4. 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

    Since

    • Since 2024

    Platforms

    • Windows
    Good alternative?
     
  5. CanoKeys icon
     2 likes

    An open-source secure key.

    Cost / License

    Since

    • Since 2022

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  6. Authman 2FA icon
     1 like

    Authman helps you manage your 2-step authentication tokens on iOS, Android and desktop, and securely sync them between devices.

    Cost / License

    Since

    • Since 2024

    Platforms

    • Windows
    • Mac
    • Android
    • iPhone
    • iPad
    • Android Tablet
    Good alternative?
     
  7. Kee icon
     9 likes

    Powered by KeePass Password Safe, Kee adds free, secure, and easy password-management features to your browser which save time and keep your private data more secure from keyloggers.

    Cost / License

    • Freemium
    • Open Source

    Application type

    Since

    • Since 2018

    Platforms

    • Windows
    • Mac
    • Linux
    • Firefox
    • Vivaldi Browser
    • GB flagUnited Kingdom
    Kee screenshot 1
    Good alternative?
     
  8. py2fa icon
     1 like

    A Two-Factor authenticator that runs on (Ubuntu) Linux and does not require a mobile device.

    Cost / License

    • Free
    • Open Source

    Since

    • Since 2016

    Platforms

    • Windows
    • Linux
    Good alternative?
     
  9. CloudOTP icon
     2 likes

    An awesome two-factor authenticator based on Flutter, supports Android, Windows and Linux platforms, and supports multiple cloud backup methods such as Onedrive, Dropbox, WebDAV, S3Cloud, etc.

    Cost / License

    Application type

    Since

    • Since 2025

    Platforms

    • Windows
    • Mac
    • Linux
    • Android
    • iPhone
    • iPad
    • Android Tablet
    • Flathub
    • Flatpak
    Good alternative?
     
  10. Authi icon
     2 likes

    Modern two-factor authentication app with cloud sync that values privacy and security.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2026

    Platforms

    • Windows
    • Android
    • Google Chrome
    • Mozilla Firefox
    • Microsoft Edge
    Good alternative?
     
  11.  1 like

    Astel is a password management software developed by Eray Türkay. None of your personal information is transferred to any other medium other than your computer. Therefore it is completely secure.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2025

    Platforms

    • Windows
    Good alternative?
     
  12. Clockode icon
     1 like

    Clockode is a minimal, and offline-only TOTP code generator that stores your authentication secrets in an encrypted local vault, keeping your two-factor codes private and accessible without needing an internet connection.

    Cost / License

    Since

    • Since 2025

    Platforms

    • Windows
    • Mac
    • Linux
    • Flathub
    • Flatpak
    Good alternative?
     
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