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FreeOTP

Open source implementation of the two-factor authentication HOTP and TOTP schemes.

Some of the top features or benefits of FreeOTP are: Open Source, No Tracking, Offline Functionality, Compatibility, User-Friendly Interface, and Multi-Platform. You can visit the info page to learn more.

We have listed more than 10 alternatives to FreeOTP. You can find them below. The top competitors are: Authy, Google Authenticator, and Aegis Authenticator. Apart from the top ones, people also compare FreeOTP with 2FAS, Microsoft Authenticator, and andOTP. The latest product that identified FreeOTP as a competitor is TOTP Authenticator. "Top 6 Google Authenticator Alternatives in 2023" is the last article that we know that reviews or compares FreeOTP to other products.
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Best FreeOTP Alternatives & Competitors in 2025

The best FreeOTP alternatives based on verified products, community votes, reviews and other factors.
Filter: 12 Open-Source Alternatives. Latest update:

  1. 53

    Authy

    ↔ FreeOTP

    Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

    /authy-alternatives
  2. 49

    Google Authenticator

    ↔ FreeOTP

    Google Authenticator is a multifactor app for mobile devices.

    free

    /google-authenticator-alternatives
  3. Featured

    ✓ ComplyCube

    ↔ FreeOTP

    Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.

    Try for free freemium $0.1 (per credit)

    Try for free
  4. 36

    Aegis Authenticator

    ↔ FreeOTP

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

    /aegis-authenticator-alternatives
  5. 39

    Microsoft Authenticator

    ↔ FreeOTP

    One app to quickly and securely verify your identity online, for all of your accounts.

    /microsoft-authenticator-alternatives
  6. 29

    andOTP

    ↔ FreeOTP

    andOTP is a two-factor authentication App for Android 4.4+

    /andotp-alternatives
  7. 17

    YubiKey

    ↔ FreeOTP

    The YubiKey is a one-time password device for secure login with two-factor authentication

    /yubikey-alternatives
  8. 23

    2FAS

    ↔ FreeOTP

    Simple 2FA Authenticator - Generate Two Factor Authentication tokens.

    /2fas-alternatives
  9. 25

    OTP Auth

    ↔ FreeOTP

    The app for calculating one-time-passwords on iPhone and iPad.

    Open Source

    /otp-auth-alternatives
  10. 11

    Yandex.Key

    ↔ FreeOTP

    Two-factor authentication app for Yandex accounts and also other QR-code based 2FA

    /yandex-key-alternatives
  11. 19

    LastPass Authenticator

    ↔ FreeOTP

    LastPass is an online password manager and form filler that makes web browsing easier and more secure.

    /lastpass-authenticator-alternatives
  12. 8

    WinAuth

    ↔ FreeOTP

    Portable open-source Authenticator for Windows

    /winauth-alternatives
  13. 11

    Duo Security

    ↔ FreeOTP

    Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.

    /duo-security-alternatives
  14. 17

    Authenticator

    ↔ FreeOTP

    Authenticator is a simple, free, and open source two-factor authentication app.

    Open Source

    /authenticator-alternatives
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Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance. featured
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