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Developer Tools · head to head

GitLab CI/CD vs Keycloak

GitLab CI/CD logo

GitLab CI/CD

Developer Tools

Automatically build, test, deploy, and monitor your applications with GitLab CI/CD

From
Free
Rated
-
Full reviewWebsite
Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: GitLab CI/CD compute minute quotas for Premium and Ultimate tiers not disclosed in documentation; Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain

Where they differ

Only the attributes on which GitLab CI/CD and Keycloak actually diverge.

Attributes where GitLab CI/CD and Keycloak differ
AttributeGitLab CI/CDKeycloak
Pricing modelfreemiumopen-source
PlatformsWebSelf-hosted, Docker, Kubernetes, Linux, Windows, API

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

What people use each for

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

GitLab CI/CD

  • Reducing open source project infrastructure costs with public project discountsnot Keycloak
  • Enforcing monthly CI/CD spending limits and quota notificationsnot Keycloak
  • Allocating compute minutes to open source contributors affordablynot Keycloak
  • Forecasting CI/CD spending patterns across multiple projectsnot Keycloak
  • Providing private runners for cost control without owning infrastructurenot Keycloak

Keycloak

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

Where each one falls short

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

GitLab CI/CD

  • Compute minute quotas for Premium and Ultimate tiers not disclosed in documentation
  • Additional compute minutes beyond quota incur charges; exact pricing not specified

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

Pricing, plan by plan

GitLab CI/CD

Free
  • FreeFree
    • 400 compute minutes per month for free tier namespaces
    • Linux x86-64 runners at 1x cost factor
  • Premium$null/tiered
    • Higher monthly compute minute quotas than free tier
    • Additional compute minutes available for purchase
  • Ultimate$null/tiered
    • Highest monthly compute minute allocations
    • Additional compute minutes available for purchase

Keycloak

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

Which should you pick?

Choose GitLab CI/CD if

  • You want to start without paying.
GitLab CI/CD review

Choose Keycloak if

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

Questions people ask

Is GitLab CI/CD or Keycloak better?
Neither clearly leads. GitLab CI/CD starts at Free and Keycloak at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GitLab CI/CD or Keycloak?
GitLab CI/CD starts at Free and Keycloak at Free.
Does GitLab CI/CD or Keycloak run on more platforms?
GitLab CI/CD runs on Web. Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API.
Can I use GitLab CI/CD for free?
Both have a free tier, so you can try either at no cost before committing.
What is GitLab CI/CD best used for?
GitLab CI/CD is most often used for reducing open source project infrastructure costs with public project discounts, enforcing monthly ci/cd spending limits and quota notifications, allocating compute minutes to open source contributors affordably, forecasting ci/cd spending patterns across multiple projects. Of those, reducing open source project infrastructure costs with public project discounts and enforcing monthly ci/cd spending limits and quota notifications are not what Keycloak is typically brought in for.

Answered from the vendors’ own pages

GitLab CI/CD: How many GitLab CI compute minutes does the free tier include?

The free tier of GitLab CI includes 400 compute minutes per month for free tier namespaces on GitLab.com.

Source
Keycloak: What protocols does Keycloak support?

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

Source
GitLab CI/CD: What is the cost factor for different GitLab CI runner types?

Linux x86-64 small runners cost 1x; medium runners cost 2x; large runners cost 3x. macOS and Windows runners have cost factors of 6-12x and are in beta status.

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
GitLab CI/CD: Do public open-source projects get discounts on GitLab CI compute minutes?

Public open-source projects receive a 0.5x discount on compute minutes. Public forks of GitLab open-source projects receive a 0.008x discount.

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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