Open Source Alternatives to Auth0

Keycloak

Enterprise authentication made simple

Authelia

Single sign-on and two-factor authentication portal

Authentik

Open-source Identity Provider

SuperTokens

Open source alternative to Auth0 and Cognito.

ZITADEL

The best of Auth0 and Keycloak combined.

Hanko

Secure, scalable, and customizable authentication solution for developers.

Cerbos

Open-source authorization solution

BoxyHQ

Open-source security building blocks

OpenAM

Enterprise-grade identity fortress - SSO and access management without vendor handcuffs

Fief

Open-source authentication platform

PHP user management framework with admin dashboard

Ory

A modular identity stack built to authenticate hundreds of millions of users at web scale