Best Multi-Factor Authenticators

An alternative to Google Authenticator or Authy

Multi-factor authentication is important because it makes stealing your data more difficult for the average criminal. The less attractive your data is, the more likely thieves are to target someone else. As the name implies, MFA combines at least two separate factors. One is usually your username and password, something you know. The other might be:

Something you have. A cell phone, keycard or USB can all verify your identity.
Something you are. Fingerprints, iris scans or other biometric data prove that you are who you say you are.

Adding this second factor to your username/password protects your privacy. And it is remarkably easy for most people to set up. Sometimes the term two-factor authentication (2FA) is also used.

Read more about setting up 2FA here.

Raivo OTP

2fas otp

2FAS is a simple way to enable two-factor authentication to verify your identity and securely log into accounts with Time-based One-time Passwords (TOTP).  2FAS is open source, works offline, does not send data to the Internet and does not store passwords or metadata.   

Aegis Authenticator

Beste MFA

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

Physical Security Keys

Physical 2FA keys increase security when logging into websites or performing transactions. These keys add an extra layer of security to the login process in addition to using a password. This makes it much harder for hackers to access accounts because they would also need physical access to the 2FA key. This prevents login information from being stolen via phishing, social engineering or unauthorized access to the user’s device. Physical 2FA keys are therefore a reliable and convenient way to protect online accounts.


Yubico is a Swedish company known for developing high-quality security keys. Their product line includes the YubiKey, an affordable and highly effective key for two-factor authentication that resembles a small USB stick. The YubiKey offers users a simple yet reliable way to securely transfer their identity and one-time access code just by pressing the device. This simple approach offers great convenience by eliminating the need for users to manually type long, complicated passwords that may contain errors when entered from a screen.