FreeOTP
Open source implementation of the two-factor authentication HOTP and TOTP schemes.
FreeOTP Alternatives
The best FreeOTP alternatives based on verified products, community votes, reviews and other factors.
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Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
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Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
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Elegant user management, tailor-made for B2B SaaS
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Google Authenticator is a multifactor app for mobile devices.
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One app to quickly and securely verify your identity online, for all of your accounts.
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andOTP is a two-factor authentication App for Android 4.4+
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The app for calculating one-time-passwords on iPhone and iPad.
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The YubiKey is a one-time password device for secure login with two-factor authentication
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Portable open-source Authenticator for Windows
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LastPass is an online password manager and form filler that makes web browsing easier and more secure.
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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.
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Authenticator is a simple, free, and open source two-factor authentication app.
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Simple 2FA Authenticator - Generate Two Factor Authentication tokens.
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TOTP Authenticator app makes it easier to setup and manage your 2-factor authentication accounts and tokens. The app allows you to add extra security to your accounts and protects them from hijacking. Available for iOS and Android.
