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Developer Tools · head to head

Keycloak vs SonarQube Cloud

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Rated
-
SonarQube Cloud logo

SonarQube Cloud

Software Development

Cloud-based static code analysis for detecting bugs, vulnerabilities, and code smells.

From
Free
Rated
-

The short version

  • Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; SonarQube Cloud free tier limited to 50k lines of code for private projects.

Where they differ

Only the attributes on which Keycloak and SonarQube Cloud actually diverge.

Attributes where Keycloak and SonarQube Cloud differ
AttributeKeycloakSonarQube Cloud
Pricing modelopen-sourcefreemium
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APIweb, api
CategoryDeveloper ToolsSoftware 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 SonarQube Cloud does not also cover.

Only in SonarQube Cloud

  • Static code analysis
  • Secrets detection
  • Pull request decoration
  • AI-driven code fixes
  • Compliance reporting
  • SCM integration

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

SonarQube Cloud

  • Enforcing code quality gates on pull requestsnot Keycloak
  • Detecting security vulnerabilities in cloud-hosted repositoriesnot Keycloak
  • Scanning for exposed secrets before mergenot Keycloak
  • Meeting compliance standards like PCI DSSnot Keycloak
  • Tracking code quality trends across teamsnot 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

SonarQube Cloud

  • Free tier limited to 50k lines of code for private projects.
  • Base Team pricing only covers up to 100,000 lines of code before extra charges apply.
  • Enterprise-grade compliance features require a custom-quoted Enterprise plan.
  • Primarily analysis-focused; lacks the runtime and cloud-workload protection of full CNAPP platforms.

Pricing, plan by plan

Keycloak

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

SonarQube Cloud

Free
  • FreeFree
    • Private project up to 50k lines of code
    • Public/open-source projects free
  • Team$34/month
    • Up to 100,000 lines of code
    • 30+ languages
    • Bug and vulnerability detection
  • Enterprise$undefined/month
    • Advanced security reports
    • Audit logs
    • SSO/SCIM

Which should you pick?

Choose Keycloak if

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

Choose SonarQube Cloud if

  • You need static code analysis.
  • You want to start without paying.
  • You work on web, api.
  • You also want secrets detection.

Questions people ask

Is Keycloak or SonarQube Cloud better?
Neither clearly leads. Keycloak starts at Free and SonarQube Cloud at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or SonarQube Cloud?
Keycloak starts at Free and SonarQube Cloud at Free.
Does Keycloak or SonarQube Cloud run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. SonarQube Cloud runs on web, api.
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 SonarQube Cloud is typically brought in for.
What can Keycloak do that SonarQube Cloud cannot?
SonarQube Cloud covers Static code analysis, Secrets detection, Pull request decoration, AI-driven code fixes.

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
SonarQube Cloud: What does SonarQube Cloud cost?

The Team plan starts at $34/month for up to 100,000 lines of code, while Enterprise pricing is custom and quoted annually with additional compliance and SSO features.

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
SonarQube Cloud: Is there a free plan, and what are its limits?

Yes, the free tier lets you explore SonarQube Cloud on a private project up to a maximum of 50,000 lines of code; public projects are free.

Source
Keycloak: Is Keycloak free?

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

Source
SonarQube Cloud: How is usage metered?

Billing is based on lines of code in the largest branch of a project; how often analysis runs does not affect the price.

Source
SonarQube Cloud: Can I change or cancel my plan?

There is no commitment on the Team plan, and customers can downgrade to the free tier at any time.

Source
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