Open Source 2FA Authenticator (2FAS) Alternatives for Linux

Alternatives list

1. 

   

   Bitwarden

    1478 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

   

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   Good alternative?Is Bitwarden a good alternative to 2FA Authenticator (2FAS)?

    
2. 

   

   Proton Authenticator

    118 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

   

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   Good alternative?Is Proton Authenticator a good alternative to 2FA Authenticator (2FAS)?

    
4. 

   

   Ente Auth

    201 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
   • Flatpak
   • OpenAPK

   • United States

   

   

   

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   Good alternative?Is Ente Auth a good alternative to 2FA Authenticator (2FAS)?

    

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   2comments

   ExpandCollapse

   Ente Auth vs 2FA Authenticator (2FAS) Comments

   Positive comment by kurifoxen · Jul 23, 2024

   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

   Negative comment by Sam Lander · Sep 5, 2024

   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.

   2 of 2 comments

   

   

   • 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
5. Ad

   

   

   Nitrokey

   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 protect...

   https://www.nitrokey.com

   Learn More
6. 

   

   Nitrokey

    25 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

   • Paid
   • Open Source (Apache-2.0)

   Application type

   • Authenticator

   Origin

   • Germany
   • EU

   Platforms

   • Mac
   • Windows
   • Linux
   • Flathub

   • Germany
   • EU

   

   

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   Good alternative?Is Nitrokey a good alternative to 2FA Authenticator (2FAS)?

    
7. 

   

   Authenticator Extension

    20 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

   • Authenticator

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Linux
   • Microsoft Edge
   • Google Chrome
   • Mozilla Firefox

   • United States

   

   

   

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9. 

   

   OTPClient

    6 likes

   GTK+ application for securely managing TOTP & HOTP tokens. Content is encrypted on disk using AES256-GCM. Master password derived using PBKDF2 with 100k iterations & SHA512 as hash algorithm. Can import encrypted backups from andOTP & Authenticator+.

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application type

   • Authenticator

   Origin

   • Italy
   • EU

   Platforms

   • Linux
   • Flathub
   • GNOME

   • Italy
   • EU

   

   

   

   More about OTPClient  

   

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10. 

    

    SoloKeys

     10 likes

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

    24 SoloKeys alternatives

    Cost / License

    • Paid
    • Open Source

    Origin

    • United States

    Platforms

    • Mac
    • Windows
    • Linux
    • Android

    • United States

    

    More about SoloKeys  

    

    Good alternative?Is SoloKeys a good alternative to 2FA Authenticator (2FAS)?

     
11. 

    

    Keysmith

     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).

    83 Keysmith alternatives

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application type

    • Authenticator

    Origin

    • Germany
    • EU

    Platforms

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

    • Germany
    • EU

    

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12. 

    

    Open Authenticator by Skyost

     2 likes

    Secure your online accounts with Open Authenticator : a free, open-source and lovely-crafted TOTP (Time-Based One-Time Password) manager.

    Cost / License

    • Freemium
    • Open Source (GPL-3.0)

    Application type

    • Authenticator

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Linux

    

    

    

    +2

    

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13. 

    

    Hermes OTP

     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)

    Platforms

    • Mac
    • Windows
    • Linux

    

    More about Hermes OTP  

    

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14. 2

    2

    2fa

     2 likes

    Two-factor authentication on the command line.

    Cost / License

    • Free
    • Open Source (BSD-3-Clause)

    Platforms

    • Linux
    • Go (Programming Language)

    2

    

    Good alternative?Is 2fa a good alternative to 2FA Authenticator (2FAS)?

     
15. C

    C

    cotp

     1 like

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

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application type

    • Authenticator

    Platforms

    • Linux
    • Homebrew
    • Mac
    • Windows
    • Rust

    

    More about cotp  

    C

    

    Good alternative?Is cotp a good alternative to 2FA Authenticator (2FAS)?