Two Factor Auth (2FA)

List of websites and whether or not they support 2FA

19 Alternatives To Two Factor Auth (2FA)

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1Password

1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser. 1Password is the easiest way to store and use strong passwords. Log in to sites and fill forms securely with a single click.

Authpack

Complete user auth system installed with 8 lines of code.
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Authy

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

Clef

Clef is secure two-factor with no passwords or tokens.

GenerateOTP

A simple API to generate and validate OTP codes
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Google Titan

A 2FA device to protect yourself from hackers
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Hydro Mobile App

Free, instant, scalable, blockchain-based 2FA security
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Instant 2FA

Add two-factor auth to any site in minutes
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MasterPassword

Master Password avoids all the pitfalls: a cryptographic algorithm calculates your site’s password for you, only when you need it. When you’re done, it erases the password from the device, so it can’t be stolen.
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Motiv Ring Online Security

Always on you security

Rapid 2FA

A painless way to add two-factor authentication to your site
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Two-factor authentication for Apple ID

To ensure you’re the only person who can access your account

TwoBlocks

A 2FA provider on BlockStack