Top 16 open-source products relevant to Identity Provider and SSO

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

Open Source

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

Open Source

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

Open Source

FusionAuth is a CIAM platform that is 100% free for unlimited users.

Open Source freemium

Clerk is a complete suite of embeddable UIs, flexible APIs, and admin dashboards to authenticate and manage your users.

Open Source

authentik is an open-source identity provider focused on flexibility and versatility.

Open Source

Developer-first Access Management.

Open Source

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

Open Source

An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.x framework for ASP.NET Core.

Open Source

SimpleSAMLphp is an OAuth authentication application written in native PHP.

Open Source

Add user accounts & data persistence to your static site.

Open Source

OmniAuth is a flexible authentication system utilizing Rack middleware.

Open Source

PacketFence is a Free and Open Source network access control (NAC) system.

Open Source

FreeRADIUS is responsible for authenticating one third of all users on the Internet.

Open Source

Fullstack Authorization as a Service for cloud native applications.

Open Source

Pomerium is an identity-aware proxy that enables secure access to internal applications.

Open Source