The Best Open Source Google Authenticator AlternativesTop Authenticators and other similar apps like Google Authenticator

Alternatives list

1. 

   

   Bitwarden

    1485 likes

   Open-source password manager using AES-256 and PBKDF2 SHA-256 encryption. Securely store and sync logins across iOS, Android, Windows, and more without service provider access.

   267 Bitwarden alternatives

   Cost / License

   • Freemium
   • Open Source

   Application typeApplication types

   • Password Manager
   • Authenticator

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Linux
   • Online
   • Android
   • iPhone
   • Android Tablet
   • iPad
   • Self-Hosted
   • Apple Watch
   • Snapcraft
   • Microsoft Edge
   • Vivaldi
   • Google Chrome
   • Flathub
   • Microsoft SQL Server
   • Tor Browser
   • Safari
   • F-Droid
   • Software as a Service (SaaS)
   • Flatpak
   • Cloudron
   • Docker
   • Opera
   • Chocolatey
   • Mono
   • Brave
   • AppImage
   • Mozilla Firefox
   • OpenAPK

   • United States

   

   

   

   +9

   

   More about Bitwarden  

   

   Good alternative?Is Bitwarden a good alternative to Google Authenticator?

    

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   1comment

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   Bitwarden vs Google Authenticator Comments

   Positive comment by giosann · May 5, 2020

   The paid version supports TOTP

   1 of 1 comments

   

   

   • Bitwarden is Freemium and Open SourceGoogle Authenticator is Free and Proprietary
   • Bitwarden is a Password Manager Google Authenticator is an Authenticator
   • Bitwarden is Security-focused, Privacy focused and LightweightGoogle Authenticator is not according to our users
2. 

   

   Aegis Authenticator

    285 likes

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

   62 Aegis Authenticator alternatives

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application type

   • Authenticator

   Origin

   • Netherlands
   • EU

   Platforms

   • Android
   • Android Tablet
   • F-Droid
   • OpenAPK

   • Netherlands
   • EU

   

   

   

   More about Aegis Authenticator  

   

   Good alternative?Is Aegis Authenticator a good alternative to Google Authenticator?

    

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   10comments

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   Aegis Authenticator vs Google Authenticator Comments

   Top Positive Comment by Guest · May 30, 2023

   Simple, open source, no ad, import/export of your data

   Positive comment by KeenFlosser · Dec 2, 2025

   FOSS alternative to other authenticator services. Works without issues while keeping it simple and functional.

   Positive comment by Kelson V · Jul 26, 2025

   More flexible, can add an additional layer of security on top of your codes, lets you organize your codes into categories, doesn't depend on Google for cloud backups, and it's easy to import from Google Auth.

   3 of 10 comments

   

   

   • Aegis Authenticator is Free and Open SourceGoogle Authenticator is Free and Proprietary
   • Aegis Authenticator is Privacy focused, Lightweight and CustomizableGoogle Authenticator is not according to our users
4. 

   

   KeePass

    1675 likes

   Free and open source password manager offering secure local storage of passwords in an encrypted database, strong AES and Twofish encryption, master key or key file access, portable version, plugin support, password generation, and optional two-factor authentication.

   278 KeePass alternatives

   Cost / License

   • Free
   • Open Source

   Application typeApplication types

   • Password Manager
   • Authenticator

   Origin

   • Germany
   • EU

   Platforms

   • Mac
   • Windows
   • Linux
   • BSD
   • Mono

   • Germany
   • EU

   

   

   

   +5

   

   More about KeePass  

   

   Good alternative?Is KeePass a good alternative to Google Authenticator?

    

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   6comments

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   KeePass vs Google Authenticator Comments

   Top Positive Comment by Guest · Dec 25, 2022

   Of course can you use KeePass and apps that utilize kdbx files as a TOTP generator. Just read it up.

   Top Negative Comment by lau22 · Apr 8, 2022

   Unrelated - doesn't provide MFA codes.

   Negative comment by Guest · Jul 19, 2024

   keepass does not do what goole auth does, 2FA OTPs

   3 of 6 comments

   

   

   • KeePass is Free and Open SourceGoogle Authenticator is Free and Proprietary
   • KeePass is a Password Manager Google Authenticator is an Authenticator
   • KeePass is Lightweight, Security-focused, Customizable and Privacy focusedGoogle Authenticator is not according to our users
5. 

   

   Ente Auth

    202 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.

   57 Ente Auth alternatives

   Cost / License

   • Free
   • Open Source (AGPL-3.0)

   Application type

   • Authenticator

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Linux
   • Online
   • Android
   • iPhone
   • Android Tablet
   • iPad
   • Flathub
   • F-Droid
   • OpenAPK
   • Flatpak

   • United States

   

   

   

   More about Ente Auth  

   

   Good alternative?Is Ente Auth a good alternative to Google Authenticator?

    
6. 

   

   Proton Authenticator

    119 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.

   76 Proton Authenticator alternatives

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application type

   • Authenticator

   Origin

   • Switzerland

   Platforms

   • Mac
   • Windows
   • Linux
   • Online
   • Android
   • iPhone
   • Android Tablet
   • iPad
   • F-Droid
   • OpenAPK

   • Switzerland

   

   

   

   +3

   

   More about Proton Authenticator  

   

   Good alternative?Is Proton Authenticator a good alternative to Google Authenticator?

    
8. 

   

   Bitwarden Authenticator

    71 likes

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

   76 Bitwarden Authenticator alternatives

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application type

   • Authenticator

   Origin

   • United States

   Platforms

   • Android
   • iPhone
   • Android Tablet
   • iPad

   • United States

   

   

   

   More about Bitwarden Authenticator  

   

   Good alternative?Is this a good alternative to Google Authenticator?

    
9. 

   

   KeePassDX

    122 likes

   KeePassDX is a material design KeePass client for managing keys and passwords in an encrypted database for your Android device.

   108 KeePassDX alternatives

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application typeApplication types

   • Password Manager
   • Authenticator

   Origin

   • France
   • EU

   Platforms

   • Android
   • Android Tablet
   • F-Droid
   • OpenAPK

   • France
   • EU

   

   

   

   More about KeePassDX  

   

   Good alternative?Is KeePassDX a good alternative to Google Authenticator?

    
10. 

    

    2FA Authenticator (2FAS)

     51 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*.

    81 2FA Authenticator (2FAS) alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    • Authenticator

    Origin

    • United States

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    • Mozilla Firefox

    • United States

    

    

    

    More about 2FA Authenticator (2FAS)  

    

    Good alternative?Is this a good alternative to Google Authenticator?

     
11. 

    

    Keepass2Android

     162 likes

    Keepass2Android is an open source password manager application for Android. It reads and writes .kdbx-files, the database format used by the popular KeePass 2.x Password Safe for Windows and other desktop operating systems.

    167 Keepass2Android alternatives

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application typeApplication types

    • Password Manager
    • Authenticator

    Origin

    • Germany
    • EU

    Platforms

    • Android
    • Android Tablet

    • Germany
    • EU

    

    

    

    More about Keepass2Android  

    

    Good alternative?Is Keepass2Android a good alternative to Google Authenticator?

     

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    1comment

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    Keepass2Android vs Google Authenticator Comments

    Positive comment by Guest · Feb 18, 2019

    Keepass2Android supports TOTP. The better thing is, TOTP seed works with desktop applications too. Therefore, you need only one database for desktop and mobile devices. Also, built-in Keepass keyboard allows autofill all inputs from one place, you don't need to switch between applications.

    1 of 1 comments

    

    

    • Keepass2Android is Free and Open SourceGoogle Authenticator is Free and Proprietary
    • Keepass2Android is a Password Manager Google Authenticator is an Authenticator
    • Keepass2Android is Privacy focused and LightweightGoogle Authenticator is not according to our users
12. 

    

    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.

    65 FreeOTP alternatives

    Cost / License

    • Free
    • Open Source (Apache-2.0)

    Application type

    • Authenticator

    Origin

    • United States

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad

    • United States

    

    

    

    More about FreeOTP  

    

    Good alternative?Is FreeOTP a good alternative to Google Authenticator?

     
13. 

    

    Stratum

     25 likes

    Open-source authenticator for Android and Wear OS providing local, encrypted token storage, TOTP/HOTP support, and export options. No server communication, no corporate ties, and no data lock-in—prioritizing privacy, usability, backup, and secure multi-token management.

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application type

    • Authenticator

    Platforms

    • Android
    • Android Tablet
    • Android Wear
    • F-Droid

    

    

    

    More about Stratum  

    

    Good alternative?Is Stratum a good alternative to Google Authenticator?

     

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    1comment

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    Stratum vs Google Authenticator Comments

    Positive comment by Dominik Pala · Oct 12, 2024

    It works on wear os and it is open-source.

    1 of 1 comments

    

    

    • Stratum is Free and Open SourceGoogle Authenticator is Free and Proprietary
    • Stratum is Lightweight and Privacy focusedGoogle Authenticator is not according to our users
14. 

    

    KeeWeb

     117 likes

    Web and desktop password manager compatible with KeePass. Works online in any modern browser or as a desktop app for Windows, macOS, and Linux.

    212 KeeWeb alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    • Password Manager

    Origin

    • Ukraine

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Online

    • Ukraine

    

    

    

    +1

    

    More about KeeWeb  

    

    Good alternative?Is KeeWeb a good alternative to Google Authenticator?