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Developer Tools · head to head

CLion vs Keycloak

CLion logo

CLion

Developer Tools

A cross-platform IDE for C and C++

From
Free
Rated
-
Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Rated
-

The short version

  • Each has a real cost: CLion specific subscription pricing not listed on product page; Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain

Where they differ

Only the attributes on which CLion and Keycloak actually diverge.

Attributes where CLion and Keycloak differ
AttributeCLionKeycloak
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.

CLion

  • C and C++ development with real-time analysisnot Keycloak
  • Embedded systems and ARM toolchain developmentnot Keycloak
  • Remote development via Docker and WSLnot Keycloak
  • Educational programming instructionnot Keycloak
  • Cross-platform development for Linux and Windowsnot Keycloak

Keycloak

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

Where each one falls short

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

CLion

  • Specific subscription pricing not listed on product page
  • Requires reference to separate store page for tier details
  • AI credits needed for integrated AI features
  • No mention of free trial for commercial 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

Pricing, plan by plan

CLion

Free
  • Free (Non-commercial)Free
    • Non-commercial use license
    • Full IDE features for hobby and open-source projects
  • Free (Educational)Free
    • Student licenses
    • Teacher licenses
    • Full IDE access for educational purposes
  • Subscription$null/month
    • Different subscription options for individuals and organizations
    • 25% discount for switching from competing products

Keycloak

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

Which should you pick?

Choose CLion if

  • You want to start without paying.

Choose Keycloak if

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

Questions people ask

Is CLion or Keycloak better?
Neither clearly leads. CLion 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, CLion or Keycloak?
CLion starts at Free and Keycloak at Free.
Does CLion or Keycloak run on more platforms?
CLion runs on Web. Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API.
Can I use CLion for free?
Both have a free tier, so you can try either at no cost before committing.
What is CLion best used for?
CLion is most often used for c and c++ development with real-time analysis, embedded systems and arm toolchain development, remote development via docker and wsl, educational programming instruction. Of those, c and c++ development with real-time analysis and embedded systems and arm toolchain development are not what Keycloak is typically brought in for.

Answered from the vendors’ own pages

CLion: Is CLion free?

CLion offers free licenses for students, teachers, and non-commercial use. Commercial users can purchase subscriptions with organization pricing available.

Source
Keycloak: What protocols does Keycloak support?

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

Source
CLion: What free options does CLion provide?

CLion provides non-commercial use licenses for open-source and hobby projects, plus full licenses for students and teachers without cost.

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
CLion: Does CLion include AI assistance?

Yes, CLion natively integrates AI with support for Claude, GPT, Gemini, and Grok models. Users can apply JetBrains AI credits or bring their own API keys to avoid vendor lock-in.

Source
Keycloak: Is Keycloak free?

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

Source
CLion: Are there discounts for switching to CLion?

CLion offers a competitive discount of 25% for users switching from other IDEs and similar products.

Source
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