Krypton Alternatives

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

Google Authenticator is a multifactor app for mobile devices.

free

Elegant user management, tailor-made for B2B SaaS

Try for free freemium

Secure login made open and easy 🔒

Open Source

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

Email Encryption. Encrypt your emails with GnuPG, OpenPGP, S/MIME or your favourite email client.

Open Source

Login to any account on any device with your fingerprint

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.

Rublon enables your workforce to securely access your organization's networks, servers and applications via easy-to-use multi-factor authentication. Protect cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.

freemium $1.0 / Monthly (per user)

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

A Two-Factor Authentication application.

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

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