A free, secure and open source app for Android
Source code for 2FAS Auth Android app
Official Android implementation of a modern two-factor authentication
A native, lightweight and secure one-time-password (OTP) client
Source code for 2FAS Auth iOS app
iOS client for Proton Authenticator
FIDO® Certified StrongKey FIDO Server (SKFS)
A Java-based LDAP API
SikkerBox is a secure two-factor authentication (2FA) application, etc
PHP strong authentication library, web interface & CLI, OATH certified
Open source two-factor authentication for Android
Forget passwords, use a fingerprint scanner or facial recognition
An open source Identity & Access Management solution with AD-functions
Token-based AngularJS authentication
DBIS Reference Implementation
Plugin for OpenLDAP who checks password quality