Keycloak vs SuperTokens

Comparing two open source alternatives to Auth0 . Use the comparison below to decide which one fits your needs.

Keycloak

Apache-2.0

Open-source identity and access management with SSO, OAuth2, OIDC, and SAML support for modern applications.

AGPL-3.0

Open-source authentication solution, an alternative to Auth0 and Firebase Auth that you can self-host.

	Keycloak	SuperTokens
License	Apache-2.0	AGPL-3.0
Self-hostable	Yes	Yes
GitHub Stars	35,491	15,134
Forks	8,592	677
Open Issues	2,892	141
Last Commit	Jul 4, 2026	Jul 3, 2026
First Released	Jul 2, 2013	Jan 5, 2020
Categories	Authentication & Identity	Authentication & Identity
Tags	#authentication #sso #security #self hosted	#authentication #self hosted #privacy #security

Open source identity provider and SSO solution that replaces Auth0 and Okta with a self-hostable, flexible authentication platform.

Open-source authentication platform for Next.js and React, built as an alternative to Auth0 and Clerk.