Description: HENNGE OTP Generator is a free, open-source one-time password generator for 2-factor authentication. It can generate time-based and counter-based OTP codes compatible with Google Authenticator and other OTP clients.
Type: software
Pricing: Open Source
Description: Toopher is a multi-factor authentication service that provides an extra layer of security beyond just a password when logging into accounts. It uses a combination of biometrics, security tokens, and one-time passcodes.
Type: software