Flexible authentication solution for Rails with Warden

A generalized Rack framework for multiple-provider authentication.

Doorkeeper is an OAuth 2 provider for Rails and Grape.

An unobtrusive ruby authentication library based on ActiveRecord.

Clearance is built to support authentication and authorization via an email/password sign-in mechanism in applications. It provides some core classes commonly used for these features, along with some opinionated defaults - but is intended to be easy to override.

inactive project

WebAuthn ruby server library ― Make your application a W3C Web Authentication conformant Relying Party and allow your users to authenticate with U2F and FIDO2 authenticators.

Provides common authentication needs such as signing in/out, activating by email and resetting password.

Rodauth is Ruby's most advanced authentication framework, designed to work in all rack applications. It's built using Roda and Sequel, but it can be used as middleware in front of web applications that use other web frameworks and database libraries. Rodauth aims to provide strong security for ...

An authentication system generator for Rails applications

Add authentication to your app without all the ickyness of passwords.

Easily switch current user to speed up development

Simple CAS authentication for Rails, Sinatra or any Rack-based site

simple rails authentication

Helper to simplify RPX Now user login/creation

A full featured library for working with Microsofts Active Directory in Ruby.

A gem providing Rails with authentication, Facebook Connect, MadMimi, and DelayedJob support

NoPassword is a toolkit that makes it easy to implement temporary, secure login codes initiated from peoples' web browsers so they can login to Rails applications via email, SMS, CLI, QR Codes, or any other side-channel.

minimalistic authentication

Rails3 engine that adds OAuth2 Provider support to any application built with Devise authentication

Implementation of the OAuth 2.0 protocol on top of rodauth.

A Simple has_secure_password implementation

An authentication gem for the pre-production (mainly) phase of the application lifecycle. Provide a simple sign in page with a list of all users in the application. Click on any user logins you to the application under the user.

Secure your application with multi-factor authentication, user activity monitoring, and real-time threat protection.

Authorization that includes basic authorization and 3 social authorization with Latvia social network draugiem.lv, facebook.com and twitter.com.