Auth0 alternatives

Open-source alternatives

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  authentik

  Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity. B Tier BPaid extras for admin, identity or audit MIT License A short and simple permissive license with conditions only requiring preservation of copyright and license notices. Licensed works, modifications, and larger works may be distributed under different terms and without source code. May Commercial useModificationDistributionPrivate use Must License and copyright notice No LiabilityWarranty Summary from GitHub's choosealicense.com Self-hostable: yesYou can run it on your own server.

  Supports SAML/OIDC and directory/proxy protocols. Recreate app integrations, policy flows and user stores. Some workplace provisioning/security integrations require Enterprise.

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  Keycloak

  Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity. A Tier ANo paid feature gates in the self-run edition Apache License 2.0 A permissive license whose main conditions require preservation of copyright and license notices. Contributors provide an express grant of patent rights. Licensed works, modifications, and larger works may be distributed under different terms and without source code. May Commercial useModificationDistributionPatent usePrivate use Must License and copyright noticeState changes No Trademark useLiabilityWarranty Summary from GitHub's choosealicense.com Self-hostable: yesYou can run it on your own server.

  Reconfigure applications for OIDC/SAML, migrate or federate directories, rebuild policies and login flows. Covers identity provider/login needs; assess workforce lifecycle and vendor integration parity separately.

• ZITADEL

  Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity. A Tier ANo paid feature gates in the self-run edition GNU Affero General Public License v3.0 Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. When a modified version is used to provide a service over a network, the complete source code of the modified version must be made available. May Commercial useModificationDistributionPatent usePrivate use Must License and copyright noticeState changesDisclose sourceNetwork use is distributionSame license No LiabilityWarranty Summary from GitHub's choosealicense.com Self-hostable: yesYou can run it on your own server.

  Customer and B2B identity infrastructure with managed or self-hosted deployment. Adapt application issuer/client settings and migrate users, organizations and policies; not an SDK-compatible swap.