alternative · auth0

Open Source Auth0 Alternatives

Self-hostable open source alternatives to Auth0 for authentication, single sign-on, and multi-factor auth without per-user cloud pricing.

Tools that replace Auth0

11 tools

// open source tools you can use instead

backend-as-a-service

Appwrite_

Open source backend platform — a Firebase alternative.

Authelia_

Self-hosted SSO and 2FA portal for your reverse proxy.

authentik_

Open source identity provider — an Okta and Auth0 alternative.

Casdoor_

UI-first self-hosted SSO — an Auth0 alternative.

Hanko_

Passkey-first open source auth — an Auth0 alternative.

Keycloak_

Open source SSO and identity management — an Auth0 alternative.

Logto_

Self-hostable auth — an Auth0 and Clerk alternative.

OpenFGA_

Fine-grained authorization engine modeled on Google Zanzibar.

Pocket ID_

Passkey login provider — an Auth0/Okta alternative.

SuperTokens_

Self-hosted authentication — an Auth0 alternative.

Zitadel_

Self-hostable auth — an Auth0 and Okta alternative.