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Developer Tools · head to head

Atlantis vs Varonis Data Security Platform

Atlantis logo

Atlantis

Developer Tools

Runs Terraform plan and apply from pull request comments, self-hosted and free

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 Atlantis has a free tier, so it costs nothing to try first.
  • Each has a real cost: Atlantis there is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.; 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.
  • They diverge on capability: Atlantis covers Pull request plans, Varonis Data Security Platform covers Effective permissions modelling.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where Atlantis and Varonis Data Security Platform differ
AttributeAtlantisVaronis Data Security Platform
Starting priceFree$100/year
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb, 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 Atlantis

  • Pull request plans
  • Comment driven apply
  • Workspace locking
  • Policy checking
  • Multi-platform webhooks
  • Custom workflows

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.

Atlantis

  • Making Terraform review meaningful by putting the actual plan output in front of the approvernot Varonis Data Security Platform
  • Removing local applies and the credential sprawl that comes with every engineer holding production keysnot Varonis Data Security Platform
  • Getting pull request driven infrastructure without paying a per-user subscription for a hosted platformnot Varonis Data Security Platform
  • Enforcing Conftest policies as a blocking check before an apply can runnot 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 Atlantis
  • Cleaning up Microsoft 365 sprawl where Teams, SharePoint sites and shared links accumulated faster than governancenot Atlantis
  • Investigating an insider incident where you need a defensible record of what a departing employee accessed and whennot Atlantis
  • Reducing the blast radius of a compromised account before an incident by removing global access groups and broken inheritancenot Atlantis

Where each one falls short

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

Atlantis

  • There is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.
  • The security surface is inherently sharp, because it is an internet-reachable webhook endpoint that executes applies with privileged credentials, gated by pull request comment authorisation that is coarse next to a real policy engine.
  • It is stateful, holding a working directory and lock database on local disk, so high availability and horizontal scaling are awkward and you own upgrades, webhook plumbing, secret rotation and the host itself.
  • It lacks the features that distinguish the commercial alternatives, with no native drift detection, no cost estimation, no managed state interface and no policy engine beyond the Conftest integration.
  • Terragrunt and monorepo layouts are not first-class, requiring hand-written custom workflows and repository configuration that becomes a growing maintenance burden as the number of repositories increases.

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

Atlantis

Free
  • AtlantisFree
    • Apache-2.0, no usage limits and no seat count
    • No commercial edition and no paid support tier
    • Community support through GitHub and the CNCF Slack channel

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 Atlantis if

  • You need pull request plans.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want comment driven apply.
Atlantis 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 Atlantis or Varonis Data Security Platform better?
Neither clearly leads. Atlantis 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, Atlantis or Varonis Data Security Platform?
Atlantis has a free tier; the other does not. Paid plans start at Free for Atlantis and $100/year for Varonis Data Security Platform.
Does Atlantis or Varonis Data Security Platform run on more platforms?
Atlantis runs on Linux, Docker, Kubernetes, Self-hosted. Varonis Data Security Platform runs on Web, Desktop.
Can I use Atlantis for free?
Yes. Atlantis has a free tier, so you can try it without paying. Varonis Data Security Platform starts at $100/year.
What is Atlantis best used for?
Atlantis is most often used for making terraform review meaningful by putting the actual plan output in front of the approver, removing local applies and the credential sprawl that comes with every engineer holding production keys, getting pull request driven infrastructure without paying a per-user subscription for a hosted platform, enforcing conftest policies as a blocking check before an apply can run. Of those, making terraform review meaningful by putting the actual plan output in front of the approver and removing local applies and the credential sprawl that comes with every engineer holding production keys are not what Varonis Data Security Platform is typically brought in for.
What can Atlantis do that Varonis Data Security Platform cannot?
Atlantis covers Pull request plans, Comment driven apply, Workspace locking, Policy checking. Varonis Data Security Platform covers Effective permissions modelling, Content classification, Access activity auditing, Behavioural alerting.

Answered from the vendors’ own pages

Atlantis: Is there a company behind Atlantis?

No. It runs as a series of LF Projects under the Linux Foundation and is maintained by volunteers. There is no vendor to buy support from and no service level agreement.

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.

Atlantis: Is it a CNCF project?

No. It uses a channel in the CNCF Slack, which is often misread as membership, but the project sits under LF Projects rather than the CNCF.

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.

Atlantis: Does it work with OpenTofu?

Yes, there is a dedicated integration guide alongside Terraform, and it also has configuration for working with hosted Terraform backends.

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.

Atlantis: What does it not do that a paid platform does?

Drift detection, cost estimation, a managed state and run interface, and a real policy engine. Atlantis does pull request plan and apply well and stops there.

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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