Softwr

Developer Tools · head to head

Keycloak vs Rollup

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Rated
-
Full reviewWebsite
Rollup logo

Rollup

Web Development

JavaScript module bundler built for libraries

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; Rollup slower than the Go and Rust bundlers that followed it, since it is written in JavaScript

Where they differ

Only the attributes on which Keycloak and Rollup actually diverge.

Attributes where Keycloak and Rollup differ
AttributeKeycloakRollup
Pricing modelopen-sourceOpen source, no licence fee
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APILinux, macOS, Windows
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 Rollup does not also cover.

Only in Rollup

  • Tree shaking
  • Clean output
  • Multiple output formats
  • Plugin API

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 Rollup
  • Companies with existing LDAP/Active Directory systems needing federated authenticationnot Rollup
  • Open-source projects and communities requiring free IAM without licensing costsnot Rollup
  • Enterprises building custom identity workflows requiring fine-grained authorisationnot Rollup
  • Teams with sufficient operational expertise to manage infrastructurenot Rollup

Rollup

  • Publishing a JavaScript library in several module formatsnot Keycloak
  • Builds where output size and cleanliness matter more than build speednot Keycloak
  • Producing ES module output for consumers who will bundle it themselvesnot 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

Rollup

  • Slower than the Go and Rust bundlers that followed it, since it is written in JavaScript
  • Application concerns like dev servers and hot reloading are not its job, so app builds need Vite on top
  • Configuration for non-trivial applications gets verbose compared with tools that assume more

Pricing, plan by plan

Keycloak

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

Rollup

Free
  • RollupFree
    • Full functionality
    • Commercial use permitted
    • Community support

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 Rollup if

  • You need tree shaking.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want clean output.
Rollup review

Questions people ask

Is Keycloak or Rollup better?
Neither clearly leads. Keycloak starts at Free and Rollup at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Rollup?
Keycloak starts at Free and Rollup at Free.
Does Keycloak or Rollup run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Rollup runs on Linux, macOS, Windows.
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 Rollup is typically brought in for.
What can Keycloak do that Rollup cannot?
Rollup covers Tree shaking, Clean output, Multiple output formats, Plugin API.

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
Rollup: Is Rollup free?

Yes, open source under the MIT licence.

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
Rollup: Rollup or webpack?

Rollup is the usual choice for libraries thanks to cleaner output and better tree shaking. webpack remains stronger for complex applications with heavy asset handling.

Keycloak: Is Keycloak free?

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

Source
Rollup: Do I need Rollup if I use Vite?

Not directly. Vite uses Rollup for production builds, so you already benefit from it.

Share

Related pages

More on Keycloak

More on Rollup

Keep looking

Other head to heads