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Developer Tools · head to head

Keycloak vs Varonis Data Security Platform

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Free plan
Yes
Full reviewWebsite
Varonis Data Security Platform logo

Varonis Data Security Platform

Cybersecurity

Data security platform that maps effective permissions, content classification and access activity across file shares, Microsoft 365 and SaaS.

From
$100/year
Free plan
No
Full reviewWebsite

The short version

  • Only Keycloak has a free tier, so it costs nothing to try first.
  • Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; Varonis Data Security Platform deployment is a project rather than an installation: collectors, service accounts, the initial crawl of a large file estate and behavioural baselining typically run for weeks to months before the first genuinely useful report, so value arrives well after the invoice does.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Keycloak and Varonis Data Security Platform actually diverge.

Attributes where Keycloak and Varonis Data Security Platform differ
AttributeKeycloakVaronis Data Security Platform
Starting priceFree$100/year
Pricing modelopen-sourcesubscription
Free tierYesNo
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APIWeb, Desktop
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2005

Identical on both: 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 Varonis Data Security Platform does not also cover.

Only in Varonis Data Security Platform

  • Effective permissions modelling
  • Content classification
  • Access activity auditing
  • Behavioural alerting
  • Blast radius view
  • Automated remediation
  • Stale data identification
  • Ransomware detection

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

Varonis Data Security Platform

  • Answering an auditor or a board asking exactly which sensitive files are reachable by every employee and who has opened themnot Keycloak
  • Cleaning up Microsoft 365 sprawl where Teams, SharePoint sites and shared links accumulated faster than governancenot Keycloak
  • Investigating an insider incident where you need a defensible record of what a departing employee accessed and whennot Keycloak
  • Reducing the blast radius of a compromised account before an incident by removing global access groups and broken inheritancenot 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

Varonis Data Security Platform

  • Deployment is a project rather than an installation: collectors, service accounts, the initial crawl of a large file estate and behavioural baselining typically run for weeks to months before the first genuinely useful report, so value arrives well after the invoice does.
  • The collection model requires granting the platform broad read access across the data you are trying to protect, which needs its own approval and creates a high-value target, and some change boards spend longer approving that access than approving the purchase.
  • Findings are produced far faster than remediation capacity: an initial scan routinely surfaces hundreds of thousands of overexposed objects, and fixing them means altering permissions owned by business units, so without an executive mandate it becomes a dashboard nobody acts on.
  • Licensing is driven by identity counts and connected data sources, so a directory full of stale accounts and service principals inflates the bill and every additional platform you connect adds cost, which quietly pushes organisations to leave their least-governed systems uncovered.
  • Coverage is deepest in the Microsoft estate and thinner elsewhere: connectors exist for other SaaS and database platforms but they do not all support the same classification, alerting and automated remediation, so a heterogeneous estate receives uneven protection at a uniform price.

Pricing, plan by plan

Keycloak

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

Varonis Data Security Platform

$100/year
  • Varonis Essentials$100/year
    • Data classification
    • Access visibility
    • Permission management
  • Varonis Professional$175/year
    • All Essentials features
    • Threat detection
    • User behavior analytics
  • Varonis Enterprise$300/year
    • All Professional features
    • Advanced analytics
    • Incident response

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 Varonis Data Security Platform if

  • You need effective permissions modelling.
  • You work on Web, Desktop.
  • You also want content classification.
Varonis Data Security Platform review

Questions people ask

Is Keycloak or Varonis Data Security Platform better?
Neither clearly leads. Keycloak starts at Free and Varonis Data Security Platform at $100/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Varonis Data Security Platform?
Keycloak has a free tier; the other does not. Paid plans start at Free for Keycloak and $100/year for Varonis Data Security Platform.
Does Keycloak or Varonis Data Security Platform run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Varonis Data Security Platform runs on Web, Desktop.
Can I use Keycloak for free?
Yes. Keycloak has a free tier, so you can try it without paying. Varonis Data Security Platform starts at $100/year.
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 Varonis Data Security Platform is typically brought in for.
What can Keycloak do that Varonis Data Security Platform cannot?
Varonis Data Security Platform covers Effective permissions modelling, Content classification, Access activity auditing, Behavioural alerting.

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
Varonis Data Security Platform: Is this data loss prevention?

No, and it is a common confusion. DLP watches data in motion and tries to stop it leaving. Varonis works on data at rest: where it is, who can reach it, and who touched it. They address different halves of the same problem and organisations frequently run both.

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
Varonis Data Security Platform: On-premises or SaaS?

It is now sold principally as SaaS, with edge collectors deployed on your network to reach on-premises file shares and directories. Older on-premises deployments with Windows collectors and SQL Server still exist in the field and are being migrated.

Keycloak: Is Keycloak free?

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

Source
Varonis Data Security Platform: Does it need agents on every server?

Generally no. It collects through APIs and network protocols with service accounts, with collectors deployed near the data rather than agents on every host. That is one reason deployment is less invasive than the scale of the data suggests.

Varonis Data Security Platform: How long until it is useful?

Expect weeks to a few months depending on the size of the file estate and how quickly the service accounts and access are approved. The classification and behavioural baselining both need time before the alerts mean anything.

Varonis Data Security Platform: Can it fix the problems it finds automatically?

Yes, it can remove global access groups, repair broken inheritance and quarantine exposed files under policy. Most organisations run this in simulation first, because automatically changing permissions on live business data goes wrong loudly.

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