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Developer Tools · head to head

Keycloak vs Lit

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Free plan
Yes
Full reviewWebsite
Lit logo

Lit

Web Development

Lightweight library for building Web Components

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; Lit smaller ecosystem compared to React or Vue
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Keycloak and Lit actually diverge.

Attributes where Keycloak and Lit differ
AttributeKeycloakLit
Pricing modelopen-sourceUnknown
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APIWeb, Node.js
CategoryDeveloper ToolsWeb Development

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Keycloak

Nothing recorded that Lit does not also cover.

Only in Lit

  • Reactive properties
  • Tagged template literals
  • Scoped styling with Shadow DOM
  • Web Components standard
  • Minimal bundle size

What people use each for

The jobs each tool is most often brought in to do.

Keycloak

  • Organisations requiring self-hosted identity infrastructure for compliance or data residencynot Lit
  • Companies with existing LDAP/Active Directory systems needing federated authenticationnot Lit
  • Open-source projects and communities requiring free IAM without licensing costsnot Lit
  • Enterprises building custom identity workflows requiring fine-grained authorisationnot Lit
  • Teams with sufficient operational expertise to manage infrastructurenot Lit

Lit

  • Building reusable component libraries across frameworksnot Keycloak
  • Creating design systems with scoped stylesnot Keycloak
  • Developing progressive web applications with minimal dependenciesnot Keycloak

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Keycloak

  • Requires self-hosted deployment and operational expertise to install, configure and maintain
  • No managed cloud option provided by Red Hat; organisations must operate infrastructure themselves or use third-party distributions
  • Clustering and high-availability configurations require additional operational knowledge
  • Community support only; commercial support requires third-party vendors or distributions

Lit

  • Smaller ecosystem compared to React or Vue
  • Web Components adoption still growing in the industry
  • Requires understanding of Shadow DOM concepts

Pricing, plan by plan

Keycloak

Free
  • Open-sourceFree
    • Full platform functionality
    • Self-hosted deployment
    • Community support

Lit

Free

No published plan breakdown. See the Lit review.

Which should you pick?

Choose Keycloak if

  • You want to start without paying.
  • You work on Self-hosted, Docker, Kubernetes, Linux, Windows, API.
Keycloak review

Choose Lit if

  • You need reactive properties.
  • You want to start without paying.
  • You work on Web, Node.js.
  • You also want tagged template literals.
Lit review

Questions people ask

Is Keycloak or Lit better?
Neither clearly leads. Keycloak starts at Free and Lit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Lit?
Keycloak starts at Free and Lit at Free.
Does Keycloak or Lit run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Lit runs on Web, Node.js.
Can I use Keycloak for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keycloak best used for?
Keycloak is most often used for organisations requiring self-hosted identity infrastructure for compliance or data residency, companies with existing ldap/active directory systems needing federated authentication, open-source projects and communities requiring free iam without licensing costs, enterprises building custom identity workflows requiring fine-grained authorisation. Of those, organisations requiring self-hosted identity infrastructure for compliance or data residency and companies with existing ldap/active directory systems needing federated authentication are not what Lit is typically brought in for.
What can Keycloak do that Lit cannot?
Lit covers Reactive properties, Tagged template literals, Scoped styling with Shadow DOM, Web Components standard.

Answered from the vendors’ own pages

Keycloak: What protocols does Keycloak support?

Keycloak supports OpenID Connect, OAuth 2.0 and SAML 2.0 protocols for authentication and authorisation.

Source
Lit: Is Lit free to use?

Yes, Lit is open source and completely free under the BSD 3-Clause license.

Source
Keycloak: Can Keycloak integrate with existing user directories?

Yes. Keycloak supports user federation with LDAP and Active Directory systems, allowing organisations to leverage existing user directories.

Source
Keycloak: Is Keycloak free?

Yes. Keycloak is fully open-source and free to deploy and use. No licensing fees are required.

Source
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Related pages

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