Flexible authentication solution for Rails with Warden
Provides Rails 4 has_secure_password mixin for Rails 2. Requires Rails 2.1 or higher.
A generalized Rack framework for multiple-provider authentication.
Doorkeeper is an OAuth 2 provider for Rails and Grape.
A clean, simple, and unobtrusive ruby authentication solution.
Rails authentication & authorization with email & password.
Easily switch current user to speed up development
Provides common authentication needs such as signing in/out, activating by email and resetting password.