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 Ente Auth, Bitwarden Authenticator, andOTP and FreeOTP.

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2FA Authenticator (2FAS) alternatives are mainly Authenticators but may also be Password Managers or QR Code Readers.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of 2FA Authenticator (2FAS).
2FA Authenticator (2FAS) icon2FA Authenticator (2FAS)
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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*.

More about 2FA Authenticator (2FAS)
More about 2FA Authenticator (2FAS)
2FA Authenticator (2FAS) alternatives page was last updated Oct 24, 2024
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  1. Aegis Authenticator icon
    Aegis Authenticator icon

    Aegis Authenticator

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

    39 Aegis Authenticator alternatives
    Aegis Authenticator screenshot 1
    Aegis Authenticator screenshot 2
    +5
    Aegis Authenticator screenshot 3

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Two-factor Authentication
    2.  Encrypted Backup
    3.  Biometric Authentication
    4.  Multi-Factor Authentication (MFA)
    5.  Unlock with fingerprint
    6.  Data export/import
    7.  Dark Mode
    8.  Time-based One-time Password
    9.  Ad-free
    10.  Works Offline
    11.  Multiple Account support
    12.  Community-based
    Aegis Authenticator icon2FA Authenticator (2FAS) Icon

    Aegis Authenticator VS 2FA Authenticator (2FAS)

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

    • Aegis Authenticator is the most popular Android alternative to 2FA Authenticator (2FAS).

    • Aegis Authenticator is the most popular Open Source & free alternative to 2FA Authenticator (2FAS).

    • Aegis Authenticator is Free and Open Source2FA Authenticator (2FAS) is also Free and Open Source
    • Aegis Authenticator is Privacy focused and Lightweight2FA Authenticator (2FAS) is not according to our users
  2. Ente Auth icon
    Ente Auth icon

    Ente Auth

     92 likes
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    ente's Authenticator app helps you generate and store 2 step verification (2FA) tokens on your mobile devices.

    28 Ente Auth alternatives
    Ente Auth screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    • Flathub
    • Flatpak
    Ente Auth screenshot 1
    Ente Auth screenshot 2
    +7
    Ente Auth screenshot 3

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Two-factor Authentication
    2.  Multi Device Support
    3.  End-to-End Encryption
    4.  Works Offline
    5.  Ad-free
    6.  Synchronization
    7.  Dark Mode
    8.  Time-based One-time Password
    9.  Encrypted Backup
    10.  Cloud Sync
    11.  Biometric Authentication
    12.  Desktop Application
    Ente Auth icon2FA Authenticator (2FAS) Icon

    Ente Auth VS 2FA Authenticator (2FAS)

    Is Ente Auth a good alternative to 2FA Authenticator (2FAS)?
     
    Comments about Ente Auth as an Alternative to 2FA Authenticator (2FAS)
     
    Sam Lander

    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.

    Negative comment •Sep 5, 2024
    0
    kurifoxen

    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

    Positive comment •Jul 23, 2024
    0
    2FA Authenticator (2FAS) Icon
    Ente Auth icon

    • Ente Auth is the most popular Web-based, Windows, Mac, iPhone, Linux, iPad & Android Tablet alternative to 2FA Authenticator (2FAS).

    • Ente Auth is Free and Open Source2FA Authenticator (2FAS) is also Free and Open Source
    • Ente Auth is Privacy focused and Lightweight2FA Authenticator (2FAS) is not according to our users
  4. Bitwarden Authenticator icon
    Bitwarden Authenticator icon

    Bitwarden Authenticator

     40 likes
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    Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts. Using industry-standards, Bitwarden Authenticator supports any website or application that uses TOTP.

    47 Bitwarden Authenticator alternatives
    Bitwarden Authenticator screenshot 1
    Bitwarden Authenticator screenshot 2
    +1
    Bitwarden Authenticator screenshot 3

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Two-factor Authentication
    2.  Multi-Factor Authentication (MFA)
    3.  Time-based One-time Password
    4.  Cloud Sync
    5.  Works Offline
    6.  Biometric Authentication
    7.  Dark Mode
    Bitwarden Authenticator icon2FA Authenticator (2FAS) Icon

    Bitwarden Authenticator VS 2FA Authenticator (2FAS)

    Is this a good alternative to 2FA Authenticator (2FAS)?
     
  5. Ad
  6. andOTP icon
    andOTP icon

    andOTP

     78 likes
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    It implements Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP). Simply scan the QR code and login with the generated 6-digit code.

    43 andOTP alternatives
    Main (Light theme)
    Settings (Light theme)
    +3
    Backup (Light theme)

    License model

    • Free • Open Source

    Application types

    Platforms

    • Android
    • Android Tablet

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  Encrypted Backup
    2.  Dark Mode
    3.  Time-based One-time Password
    4.  Two-factor Authentication
    5.  Unlock pin
    6.  Multi-Factor Authentication (MFA)
    7.  Biometric Authentication
    8.  Unlock with fingerprint
    9.  Icon sets
    10.  Sort by date
    11.  Sorting by tags
    12.  Password Generator
    Discontinued

    Unmaintained, see https://github.com/andOTP/andOTP and developers announcement on XDA https://forum.xda-developers.com/t/app-4-4-open-source-andotp-open-source-two-factor-authentication-for-android.3636993/post-87021655. The GitHub repository was also archived in June 2022.

    andOTP icon2FA Authenticator (2FAS) Icon

    andOTP VS 2FA Authenticator (2FAS)

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  7. FreeOTP icon
    FreeOTP icon

    FreeOTP

     77 likes
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    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.

    44 FreeOTP alternatives
    FreeOTP screenshot 1
    FreeOTP screenshot 2
    +1
    FreeOTP screenshot 3

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad

    Properties

    1.  Privacy focused

    Features

    1.  Two-factor Authentication
    2.  Multiple Account support
    3.  Community-based
    4.  Ad-free
    5.  Works Offline
    6.  Time-based One-time Password
    7.  Dark Mode
    FreeOTP icon2FA Authenticator (2FAS) Icon

    FreeOTP VS 2FA Authenticator (2FAS)

    Is FreeOTP a good alternative to 2FA Authenticator (2FAS)?
     
    Comments about FreeOTP as an Alternative to 2FA Authenticator (2FAS)
     
    Guest

    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!

    Positive comment •Aug 13, 2020
    0
    2FA Authenticator (2FAS) Icon
    FreeOTP icon
    • FreeOTP is Free and Open Source2FA Authenticator (2FAS) is also Free and Open Source
    • FreeOTP is Privacy focused2FA Authenticator (2FAS) is not according to our users
  8. Stratum icon
    Stratum icon

    Stratum

     15 likes
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    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.

    41 Stratum alternatives
    Stratum screenshot 1
    Stratum screenshot 2
    +5
    Stratum screenshot 3

    License model

    • Free • Open Source

    Application type

    Platforms

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

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Time-based One-time Password
    2.  Two-factor Authentication
    3.  Encrypted Backup
    4.  Dark Mode
    5.  Ad-free
    6.  Compatible with Android Wear
    7.  Works Offline
    8.  Multiple Account support
    9.  Biometric Authentication
    10.  End-to-End Encryption
    11.  No Tracking
    12.  Multi-Factor Authentication (MFA)
    Stratum icon2FA Authenticator (2FAS) Icon

    Stratum VS 2FA Authenticator (2FAS)

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  10. Authenticator Extension icon
    Authenticator Extension icon

    Authenticator Extension

     17 likes
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    Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.

    47 Authenticator Extension alternatives
    Authenticator Extension screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Microsoft Edge
    • Google Chrome
    • Mozilla Firefox
    Authenticator Extension screenshot 1
    Authenticator Extension screenshot 2

    Authenticator Extension Features

    1.  Two-factor Authentication
    2.  Browser extension
    3.  Time-based One-time Password
    4.  Multi-Factor Authentication (MFA)
    5.  Dark Mode
    Authenticator Extension icon2FA Authenticator (2FAS) Icon

    Authenticator Extension VS 2FA Authenticator (2FAS)

    Is this a good alternative to 2FA Authenticator (2FAS)?
     
  11. Nitrokey icon
    Nitrokey icon

    Nitrokey

     17 likes
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    Email Encryption. Encrypt your emails with GnuPG, OpenPGP, S/MIME or your favourite email client. Keep your secret keys secure on your Nitrokey.

    13 Nitrokey alternatives

    License model

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub

    Properties

    1.  Privacy focused

    Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    3.  Hardware securite module (HSM)
    4.  HMAC-Based One-Time Password (HOTP)
    5.  OpenPGP
    6.  PGP Encryption
    7.  Biometric Authentication
    8.  Works Offline
    9.  Password safe
    10.  S/MIME Support
    Nitrokey icon2FA Authenticator (2FAS) Icon

    Nitrokey VS 2FA Authenticator (2FAS)

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  12. OVault icon
    OVault icon

    OVault

     3 likes
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    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.

    51 OVault alternatives
    OVault screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • iPhone
    • iPad
    OVault screenshot 1
    OVault screenshot 2
    +3
    OVault screenshot 3

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  No Tracking
    2.  Ad-free
    3.  Time-based One-time Password
    4.  Works Offline
    5.  No registration required
    6.  Sync with iCloud
    7.  iOS widget
    8.  Keychain
    OVault icon2FA Authenticator (2FAS) Icon

    OVault VS 2FA Authenticator (2FAS)

    Is OVault a good alternative to 2FA Authenticator (2FAS)?
     
  13. Keysmith icon
    Keysmith icon

    Keysmith

     5 likes
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    Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).

    69 Keysmith alternatives
    Keysmith screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

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

    Properties

    1.  Privacy focused

    Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    Keysmith icon2FA Authenticator (2FAS) Icon

    Keysmith VS 2FA Authenticator (2FAS)

    Is Keysmith a good alternative to 2FA Authenticator (2FAS)?
     
  14. 2FAGuard icon
    2FAGuard icon

    2FAGuard

     3 likes
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    A modern and secure Windows app for managing your 2FA authentication codes.

    39 2FAGuard alternatives
    2FAGuard screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Windows
    2FAGuard screenshot 1
    2FAGuard screenshot 2
    +3
    2FAGuard screenshot 3

    2FAGuard Features

    1.  Dark Mode
    2.  Portable
    3.  Two-factor Authentication
    4.  Time-based One-time Password
    5.  Ad-free
    6.  AES-256 Encryption
    7.  Works Offline
    8.  Biometric Authentication
    9.  Encrypted Backup
    10.  Support for Windows Hello
    2FAGuard icon2FA Authenticator (2FAS) Icon

    2FAGuard VS 2FA Authenticator (2FAS)

    Is 2FAGuard a good alternative to 2FA Authenticator (2FAS)?
     
  15. FreeOTP+ (fork of FreeOTP) icon
    FreeOTP+ (fork of FreeOTP) icon

    FreeOTP+ (fork of FreeOTP)

     12 likes
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    FreeOTP+ is a fork of FreeOTP with an updated user interface and with backup/restore functionality (to external files or via built-in Android backup/restore).

    36 FreeOTP+ (fork of FreeOTP) alternatives
    FreeOTP+ (fork of FreeOTP) screenshot 1
    FreeOTP+ (fork of FreeOTP) screenshot 2

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid

    FreeOTP+ (fork of FreeOTP) Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    3.  Multi-Factor Authentication (MFA)
    FreeOTP+ (fork of FreeOTP) icon2FA Authenticator (2FAS) Icon

    FreeOTP+ (fork of FreeOTP) VS 2FA Authenticator (2FAS)

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12 of 24 2FA Authenticator (2FAS) alternatives