Nitrokey Alternatives

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

Secure login made open and easy 🔒

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Google Authenticator is a multifactor app for mobile devices.

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

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

Affordable Two-Factor Authentication For Active Directory

Login to any account on any device with your fingerprint

FreeOTP Authenticator precisely brings a second, secure layer of security for your online social or private accounts.

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

A Two-Factor Authentication application.

Multi-factor authentication is becoming the standard. Secure your apps and VPN with strong MFA for adaptive, risk-based authentication.

DIGIPASS offers two-factor​ authentication solutions for mobile applications.

MFAuth is a free and secure application that offers 2-step verification for managing your online accounts and services, thus helping to protect your accounts from hackers.