Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape
Google Auth Library for Node.js
Robust, modular, and extendable user authentication system
A spec compliant, secure by default
Streamline your web application's authentication with Jackson
The authentication glue you need
Cross-platform application monitoring and error tracking software
Single Sign-On for Your Self-Hosted Universe
The cloud-native API gateway
One Time Password Authentication package, compatible with Google Auth
Open source auth infrastructure for B2B SaaS
Elixir Authentication
CloudFoundry User Account and Authentication (UAA) Server
JSON web token authentication for Laravel and Lumen
A new way to see and navigate directory trees
Password hashing specification for the Elixir programming language
Orchestrate end-to-end encryption, mutual authentication
An authoring tool for CSS which uses JavaScript as a host language
Universal, standards-based auth provider
A library for implementing authentication/authorization in Ember.js
Source code for 2FAS Auth Browser Extension
A Go (Golang) Backend Clean Architecture project with Gin, MongoDB
An Elixir Authentication System for Plug-based Web Applications
Go package for UUIDs based on RFC 4122 and DCE 1.1: Authentication