Proton Authenticator & 2FA

Secure and end-to-end encrypted authenticator, available on every device.

Proton Authenticator is a free, private 2FA authenticator app that generates secure one-time passwords (OTP) on all your devices, even offline. Add multi-factor authentication (MFA) to your online accounts in seconds. From the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass.Open-source, end-to-end encrypted, and protected by Swiss privacy laws, Proton Authenticator is the safest way to generate an…