Question 1

Can I self-host an Auth0 alternative?

Accepted Answer

Yes—Keycloak, Authentik, FusionAuth (self-host) are typical paths. Self-hosting trades vendor cost for ops responsibility.

Question 2

Why do companies look for Auth0 alternatives?

Accepted Answer

Most often: pricing jumps with enterprise add-ons, SSO/SCIM requirements, and the need for more control or simpler operations.

Question 3

What are the key B2B features to compare?

Accepted Answer

We focus on SAML SSO, SCIM, Organizations/tenants, MFA, and audit logs.

Question 4

Do you mark compliance or enterprise features automatically?

Accepted Answer

No. Unknown stays unknown until we have evidence. This site is not legal advice.

TOOL	PRICING MODEL	SETUP	SAML SSO	SCIM	Organizations	MFA	Audit logs	NOTES
WorkOS	per-connection / add-ons	medium	✓	✓	✓	?	?	Strong B2B SSO + directory sync focus.
Clerk	per MAU + B2B add-ons	low	✓	?	✓	✓	?	Great DX; enterprise SSO can get pricey.
Microsoft Entra External ID	bundle / enterprise licensing	high	✓	✓	✓	✓	✓	Best if already on Microsoft stack.
Okta	enterprise licensing	high	✓	✓	✓	✓	✓	Mature enterprise IAM; higher cost.
Keycloak	self-host infra cost	high	✓	?	✓	✓	?	Powerful OSS; ops-heavy.
Zitadel	cloud + self-host	medium	✓	?	✓	✓	?	Modern auth; good multi-tenant story.
FusionAuth	license + self-host	medium	✓	✓	✓	✓	?	Auth platform with self-host option.
SuperTokens	open-source + paid add-ons	medium	?	?	✓	✓	?	Dev-friendly; enterprise features vary.
Ory	cloud + OSS components	high	?	?	?	?	?	Composable IAM primitives; needs engineering.
Authentik	open-source self-host	medium	✓	?	✓	✓	?	Good OSS option; smaller ecosystem.
Firebase Auth	usage-based	low	?	?	?	✓	?	Strong B2C baseline; weaker enterprise knobs.
AWS Cognito	usage-based	medium	✓	?	?	✓	?	Good infra-native option; DX mixed.

Self-hosted Auth0 alternatives (control vs ops cost)

Shortlist