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Indie alternatives to Okta

5 products made by independent developers and small teams that do what Okta does, 5 of them with a free plan. Free and open-source options come first.

At a glance

Product	Price	Open source	Self-host	Platforms
Authelia	Free	Yes	Yes	Self-hosted
Keycloak	Free	Yes	Yes	Self-hosted, Linux
authentik	Free plan	Yes	Yes	Self-hosted
FusionAuth	Free plan	–	Yes	Web, Self-hosted, API
ZITADEL	Free plan	Yes	Yes	Web, Self-hosted, API

The alternatives

1. Authelia

Open-source single sign-on and 2FA portal for your apps

Authelia adds single sign-on, two-factor authentication and access control in front of self-hosted web apps via your reverse proxy, and can act as an OpenID Connect provider.

Free · Self-hosted · Website ↗

2. Keycloak

Open-source identity and access management

Keycloak is a self-hosted identity provider with single sign-on, OpenID Connect, SAML, LDAP integration and user federation.

Free · Self-hosted, Linux · Website ↗

3. authentik

Self-hosted identity provider and SSO

authentik is an open-source identity provider supporting OAuth2/OIDC, SAML, LDAP and proxy authentication, popular in homelabs.

Free plan · Self-hosted · Website ↗

4. FusionAuth

Customer identity and auth you can run anywhere

FusionAuth is a downloadable or hosted CIAM platform with login, MFA, SSO and user management APIs.

Free plan · Web, Self-hosted, API · Website ↗

5. ZITADEL

Open-source identity infrastructure for multi-tenant apps

ZITADEL provides authentication, SSO, passkeys and multi-tenancy for B2B apps, as a cloud service or self-hosted.

Free plan · Web, Self-hosted, API · Website ↗

Questions

Is there a free alternative to Okta?

Yes. 5 of the 5 indie alternatives listed here have a free plan or are free: Authelia, Keycloak, authentik, FusionAuth and 1 more.

Is there an open-source alternative to Okta?

Authelia, Keycloak, authentik and ZITADEL are open source.

Can I self-host an alternative to Okta?

Yes: Authelia, Keycloak, authentik, FusionAuth and 1 more can run on your own server.

Which Okta alternatives work on Mac, Windows, iPhone or Android?

On Linux: Keycloak. On the web: FusionAuth and ZITADEL.

What makes these alternatives to Okta “indie”?

They are built by independent developers or small teams rather than large companies. Each one is listed because it does the same core job as Okta.

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