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Developer Tools · head to head

Keycloak vs Metasploit

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Free plan
Yes
Metasploit logo

Metasploit

Cybersecurity

The world's most used penetration testing framework

From
Free
Free plan
Yes

The short version

  • Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; Metasploit the free Framework edition is command line only; the web interface is Pro only
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Keycloak and Metasploit actually diverge.

Attributes where Keycloak and Metasploit differ
AttributeKeycloakMetasploit
Pricing modelopen-sourcefreemium
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APIDesktop, Cli
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2000

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 Metasploit does not also cover.

Only in Metasploit

  • Exploit database
  • Payload generation
  • Post-exploitation
  • Evasion modules
  • Auxiliary scanners
  • Social engineering
  • Credential harvesting
  • Session management

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

Metasploit

  • Penetration testing and exploit development against known vulnerabilitiesnot Keycloak
  • Validating whether a reported vulnerability is actually exploitablenot Keycloak
  • Running phishing and credential attack simulations on the Pro editionnot 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

Metasploit

  • The free Framework edition is command line only; the web interface is Pro only
  • Automated exploitation, automated credential attacks and antivirus evading dynamic payloads are restricted to Metasploit Pro
  • Reporting, audit wizards, task chains and closed loop vulnerability validation are Pro only
  • Rapid7 publishes no price for Metasploit Pro and routes buyers to contact sales

Pricing, plan by plan

Keycloak

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

Metasploit

Free
  • Metasploit Framework (OSS)Free
    • Open source
    • 1500+ exploits
    • Command line
  • Metasploit ProFree
    • Web interface
    • Automated testing
    • Phishing campaigns

Which should you pick?

Choose Keycloak if

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

Choose Metasploit if

  • You need exploit database.
  • You want to start without paying.
  • You work on Desktop, Cli.
  • You also want payload generation.

Questions people ask

Is Keycloak or Metasploit better?
Neither clearly leads. Keycloak starts at Free and Metasploit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Metasploit?
Keycloak starts at Free and Metasploit at Free.
Does Keycloak or Metasploit run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Metasploit runs on Desktop, Cli.
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 Metasploit is typically brought in for.
What can Keycloak do that Metasploit cannot?
Metasploit covers Exploit database, Payload generation, Post-exploitation, Evasion modules.

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
Metasploit: Is Metasploit Framework free to use?

Yes, Metasploit Framework is available as free open-source software with source code accessible via GitHub. Community support is provided through Slack, GitHub, Twitter, and email.

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
Metasploit: What is the difference between Metasploit Framework and Metasploit Pro?

Metasploit Framework is the free open-source version. Metasploit Pro is a commercial offering with customer support from Rapid7, though specific pricing and features are not detailed on the download page.

Source
Keycloak: Is Keycloak free?

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

Source
Metasploit: What support is available for the free Framework version?

Community-based support for Metasploit Framework is available through Slack, GitHub, Twitter, and email ([email protected]). Commercial customers using Metasploit Pro receive customer support from Rapid7.

Source
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