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Developer Tools · head to head

Ansible vs Nagios XI

Ansible logo

Ansible

Developer Tools

Simple, agentless IT automation

From
Free
Free plan
Yes
Full reviewWebsite
Nagios XI logo

Nagios XI

Technology

Enterprise-grade monitoring solution with advanced visualization and reporting

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Ansible the open source project gives the engine and the language; the automation controller, automation mesh, automation hub, analytics and governance all belong to the paid Red Hat Ansible Automation Platform; Nagios XI free Edition caps at 7 nodes or 100 services, whichever limit is hit first
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Ansible and Nagios XI actually diverge.

Attributes where Ansible and Nagios XI differ
AttributeAnsibleNagios XI
Pricing modelopen-sourceone-time
PlatformsLinux, Windows, Mac, ApiWeb
CategoryDeveloper ToolsTechnology
Founded2012Unknown

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 Ansible

  • Playbooks
  • Inventory management
  • Module library
  • Variables and templating
  • Handlers
  • Roles
  • Async tasks
  • Plugins

Only in Nagios XI

Nothing recorded that Ansible does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Ansible

  • Configuration managementnot Nagios XI
  • Server provisioningnot Nagios XI
  • Application deploymentnot Nagios XI
  • Multi-node managementnot Nagios XI
  • Orchestrationnot Nagios XI

Nagios XI

  • Monitoring servers, networks, and IoT devices for status changesnot Ansible
  • Detecting infrastructure problems before they cause outagesnot Ansible
  • Creating customizable dashboards for real-time IT visibilitynot Ansible
  • Tracking SLA compliance and generating capacity planning reportsnot Ansible

Where each one falls short

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

Ansible

  • The open source project gives the engine and the language; the automation controller, automation mesh, automation hub, analytics and governance all belong to the paid Red Hat Ansible Automation Platform
  • Event-Driven Ansible and the AI coding assistant are platform features rather than open source ones
  • Red Hat does not publish platform pricing
  • Running open source Ansible at scale means building the control plane the platform otherwise provides

Nagios XI

  • Free Edition caps at 7 nodes or 100 services, whichever limit is hit first
  • Standard Edition is licensed per node count, starting at $2,595 for 100 nodes and rising to $14,995 for 1,000 nodes
  • Enterprise Edition, which adds capacity planning and SLA reporting, is sold as an add-on starting at $4,690 for 100 nodes on top of the base license
  • Sitewide Edition for large distributed environments has no published price and requires contacting sales

Pricing, plan by plan

Ansible

Free
  • Open SourceFree
    • Community edition
    • Unlimited nodes
    • Full functionality
  • Ansible Automation Platform$5000/year
    • Enterprise support
    • Ansible Tower
    • Advanced features

Nagios XI

Free
  • Free EditionFree
    • 7 nodes OR 100 services limit
    • Self-supported only
  • Standard 100-Node$2595/perpetual
    • 100 nodes
    • First year includes support and upgrades
  • Standard 500-Node$8295/perpetual
    • 500 nodes
    • First year includes support and upgrades
  • Standard 1000-Node$14995/perpetual
    • 1,000 nodes
    • First year includes support and upgrades

Which should you pick?

Choose Ansible if

  • You need playbooks.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want inventory management.
Ansible review

Choose Nagios XI if

  • You want to start without paying.
Nagios XI review

Questions people ask

Is Ansible or Nagios XI better?
Neither clearly leads. Ansible starts at Free and Nagios XI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ansible or Nagios XI?
Ansible starts at Free and Nagios XI at Free.
Does Ansible or Nagios XI run on more platforms?
Ansible runs on Linux, Windows, Mac, Api. Nagios XI runs on Web.
Can I use Ansible for free?
Both have a free tier, so you can try either at no cost before committing.
What is Ansible best used for?
Ansible is most often used for configuration management, server provisioning, application deployment, multi-node management. Of those, configuration management and server provisioning are not what Nagios XI is typically brought in for.
What can Ansible do that Nagios XI cannot?
Ansible covers Playbooks, Inventory management, Module library, Variables and templating.

Answered from the vendors’ own pages

Ansible: Is Ansible free for commercial use?

Ansible Collaborative is open source. The page describes it as 'an open source IT automation engine' and does not impose restrictions on commercial use for the open source version.

Source
Nagios XI: What is Nagios XI's pricing model?

Nagios XI uses perpetual licensing with one-time purchase costs based on node count, ranging from $2,595 for 100 nodes to $14,995 for 1,000 nodes.

Source
Ansible: What is the difference between open source Ansible and the commercial alternative?

The page references Red Hat Ansible Automation Platform as an enterprise alternative to Ansible Collaborative, but does not disclose specific differences, pricing, or feature comparisons between the two offerings.

Source
Nagios XI: Is there a free version of Nagios XI?

Yes, Nagios XI Free Edition is available at no cost with a limit of 7 nodes or 100 services, whichever is reached first.

Source
Ansible: Is there paid support available for Ansible?

The page does not disclose whether paid support contracts are available for open source Ansible or whether Red Hat offers support plans for their enterprise Ansible Automation Platform.

Source
Nagios XI: What is included with Nagios XI licensing?

Initial licenses include one year of free version upgrades, up to 10 support cases, and support portal access. Each license permits three installations: production, backup/failover, and testing/development.

Source
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