Is Auth0 or Keycloak better?

Neither wins outright. Auth0 is best for larger b2b saas that need every enterprise compliance checkbox on day one. Keycloak is best for teams with ops capacity that need on-prem or regulated-data deployments.

Which is cheaper, Auth0 or Keycloak?

Auth0: Free up to 25k MAU. B2B Essentials from $150/mo.. Keycloak: Free, open source. Hosting and ops are on you.. Per-seat pricing means the cheaper sticker price isn't always the cheaper bill — model your seat count first.

Can I migrate from Auth0 to Keycloak?

Yes. Most teams export Auth0 data as CSV or Markdown and re-import into Keycloak. The painful part is usually automations and integrations, not the data itself.

Authentication · 2026

Auth0·vs·Keycloak

Two solid choices in authentication. Here's how they stack up on pricing, fit, and trade-offs — so you can decide in a minute.

Reviewed by Switchpoint Editors · Last updated Jun 5, 2026

Contender A

Auth0

The incumbent enterprise identity platform — broadest feature set and integrations.

Best for

Larger B2B SaaS that need every enterprise compliance checkbox on day one.

Pricing

Free up to 25k MAU. B2B Essentials from $150/mo.

Pros

Enterprise-grade compliance (SOC 2, HIPAA, FedRAMP)
Mature SDK ecosystem
Strong support tiers

Trade-offs

Pricing climbs fast past free tier
Heavier to integrate than Clerk

Visit Auth0

Contender B

Keycloak

Battle-tested open-source IAM you run yourself — no MAU costs, full data residency.

Best for

Teams with ops capacity that need on-prem or regulated-data deployments.

Pricing

Free, open source. Hosting and ops are on you.

Pros

Zero per-user cost
Full data ownership and residency control
Mature enterprise feature set (SSO, SCIM, federation)

Trade-offs

You operate it — upgrades, scaling, security
Steeper learning curve than hosted SaaS

Visit Keycloak

The matrix

Side-by-side

Best for

Auth0

Larger B2B SaaS that need every enterprise compliance checkbox on day one.

Keycloak

Teams with ops capacity that need on-prem or regulated-data deployments.

Pricing

Auth0

Free up to 25k MAU. B2B Essentials from $150/mo.

Keycloak

Free, open source. Hosting and ops are on you.

Top strength

Auth0

Enterprise-grade compliance (SOC 2, HIPAA, FedRAMP)

Keycloak

Zero per-user cost

Biggest trade-off

Auth0

Pricing climbs fast past free tier

Keycloak

You operate it — upgrades, scaling, security

	Auth0	Keycloak
Best for	Larger B2B SaaS that need every enterprise compliance checkbox on day one.	Teams with ops capacity that need on-prem or regulated-data deployments.
Pricing	Free up to 25k MAU. B2B Essentials from $150/mo.	Free, open source. Hosting and ops are on you.
Top strength	Enterprise-grade compliance (SOC 2, HIPAA, FedRAMP)	Zero per-user cost
Biggest trade-off	Pricing climbs fast past free tier	You operate it — upgrades, scaling, security

The verdict

Which should you pick?

If…Pick Auth0

Larger B2B SaaS that need every enterprise compliance checkbox on day one.

If…Pick Keycloak

Teams with ops capacity that need on-prem or regulated-data deployments.

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