Firebase Authentication Alternatives

Auth0 is a program for people to get authentication and authorization services for their own business use.

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.

Intelligent Contract Automation

Try for free paid Free Trial $9.0 / Monthly (1 user, 1 workspace, 1 template)

The Spring portfolio has many projects, including Spring Framework, Spring IO Platform, Spring Cloud, Spring Boot, Spring Data, Spring Security...

Open Source Identity and Access Management for modern Applications and Services.

JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.

Flexible authentication solution for Rails with Warden.

Application and Data, Application Utilities, and User Management and Authentication

OmniAuth is a flexible authentication system utilizing Rack middleware.

OAuth that just works. Integrate 100+ OAuth providers in minutes.

JSON Web Token Authentication support for Django REST Framework - jpadilla/django-rest-framework-jwt

LDAP is a very flexible standards-based method that can be used to store and query information about users, groups, devices and provide authentication and authorization services in a networked environment.

On-demand SSO, directory integration, user provisioning and more

Utilities, Application Utilities, and User Management and Authentication