Softwr

Developer Tools · head to head

Keycloak vs Lucidchart

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Free plan
Yes
Full reviewWebsite
Lucidchart logo

Lucidchart

Technology

Intelligent diagramming for every team

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; Lucidchart interface can overwhelm new users due to extensive features and customization options
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Keycloak and Lucidchart actually diverge.

Attributes where Keycloak and Lucidchart differ
AttributeKeycloakLucidchart
Pricing modelopen-sourceUnknown
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APIWeb, Desktop, macOS, Windows
CategoryDeveloper ToolsTechnology
FoundedUnknown2010

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 Lucidchart does not also cover.

Only in Lucidchart

  • Flowcharts & diagrams
  • Process mapping
  • Mind maps
  • Wireframes & mockups
  • Network diagrams
  • Data visualization
  • Real-time collaboration
  • Presentation mode

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

Lucidchart

  • Process documentationnot Keycloak
  • System architecturenot Keycloak
  • Workflow designnot Keycloak
  • Brainstormingnot Keycloak
  • Technical documentationnot 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

Lucidchart

  • Interface can overwhelm new users due to extensive features and customization options
  • Drag-and-drop canvas can feel clunky compared to modern whiteboard tools like Miro

Pricing, plan by plan

Keycloak

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

Lucidchart

Free
  • FreeFree
    • 3 documents
    • 60 shapes
    • Basic templates
  • Individual$7.95/month
    • Unlimited documents
    • Advanced templates
    • Cloud storage
  • Team$9/editor/month
    • Real-time collaboration
    • Team management
    • All integrations
  • Enterprise$undefined/custom
    • Advanced security
    • SSO
    • Dedicated 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 Lucidchart if

  • You need flowcharts & diagrams.
  • You want to start without paying.
  • You work on Web, Desktop, macOS, Windows.
  • You also want process mapping.
Lucidchart review

Questions people ask

Is Keycloak or Lucidchart better?
Neither clearly leads. Keycloak starts at Free and Lucidchart at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Lucidchart?
Keycloak starts at Free and Lucidchart at Free.
Does Keycloak or Lucidchart run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Lucidchart runs on Web, Desktop, 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 Lucidchart is typically brought in for.
What can Keycloak do that Lucidchart cannot?
Lucidchart covers Flowcharts & diagrams, Process mapping, Mind maps, Wireframes & mockups.

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
Lucidchart: What pricing plans does Lucidchart offer?

Lucidchart has a free plan (3 documents, 60 shapes), Individual plan ($7.95/month), Team plan ($9/editor/month), and Enterprise with custom pricing.

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
Lucidchart: Can I use Lucidchart offline?

Lucidchart is a cloud-based platform, but offers an offline desktop option for users who need to work without internet access.

Source
Keycloak: Is Keycloak free?

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

Source
Lucidchart: What compliance certifications does Lucidchart have?

Lucidchart provides SOC 2 Type II, FedRAMP, HIPAA BAA, and GDPR compliance, making it suitable for regulated industries.

Source
Lucidchart: Does Lucidchart have AI diagram generation?

Yes, Lucidchart uses AI to auto-generate flowcharts, UML diagrams, ER diagrams, and org charts from text prompts, Excel data, CSV files, code snippets, or database schemas.

Source
Lucidchart: What integrations does Lucidchart support?

Lucidchart integrates with Microsoft Teams, Slack, Jira, Confluence, Google Workspace, and Salesforce for seamless workflow integration.

Source
Share

Related pages

More on Keycloak

More on Lucidchart

Keep looking

Other head to heads