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An open-source policy engine for Kubernetes to ensure configuration best practices.

Free plan available Visit Website
Reviews on G2 SourceForge Trustpilot
311 reviews tracked

The Bottom Line

Price
Free plan available. Compare plans

Key facts

  • Open-source policy engine for Kubernetes.
  • Enforces configuration best practices for security and efficiency.
  • Automates detection and remediation of configuration issues.

Pros

  • Open-source and free to use
  • Automates policy enforcement, reducing manual effort
  • Improves Kubernetes cluster security and stability
  • Flexible with custom policy creation
  • Comes with a comprehensive set of built-in policies

Cons

  • Requires familiarity with Kubernetes configurations and JSON for custom policies
  • Primarily focused on Kubernetes, not a general-purpose policy engine

What is Polaris?

Polaris is an open-source policy engine designed for Kubernetes environments. It helps users validate and enforce best practices for Kubernetes configurations, identifying potential issues related to security, efficiency, and reliability. By providing a framework to define and apply policies, Polaris ensures that deployments adhere to desired standards, preventing common misconfigurations. This tool is ideal for DevOps teams, SREs, and platform engineers who manage Kubernetes clusters and need to maintain consistent, secure, and optimized configurations. It helps reduce operational overhead by automating the detection and remediation of configuration drifts, leading to more stable and performant Kubernetes environments. Polaris integrates with Fairwinds Insights, a broader platform for Kubernetes governance, allowing for comprehensive visibility and management of cluster health and compliance.

Available on: Web

Ratings Across the Web

4.3 (311 reviews)

Polaris holds an aggregate rating of 4.3 out of 5 from 311 reviews across G2, SourceForge and Trustpilot, last checked September 28, 2026.

Ratings aggregated from independent review platforms. Learn more

Key Features

  • Includes 30+ built-in configuration policies
  • Customizable policy creation using JSON syntax
  • Automatic remediation of issues based on policy criteria
  • Integration with Fairwinds Insights for broader Kubernetes governance
  • Identifies security, efficiency, and reliability issues in configurations

Pricing Plans

Free Trial

Pricing checked Oct 4, 2026. Source: fairwinds.com/pricing, read Oct 4, 2026

Polaris plans and prices, checked October 2026
Plan Price Details
Open Source

Free

  • Ideal for small teams
  • Goldilocks (resource requests and limits)
  • Polaris (policy engine)
+3 more
  • Nova (check Helm charts)
  • Pluto (find deprecated APIs)
  • GoNoGo (add-on upgrade safety)
Insights Enterprise

Custom pricing plans available

  • Ideal for teams managing multiple clusters and critical applications
  • Available modules: Kubernetes FinOps, Kubernetes Policy Management, and Kubernetes Security and Compliance
  • Cluster and node pricing options
+7 more
  • Volume discounts
  • Unlimited nodes and clusters
  • Unlimited repository scanning
  • 13 months of cost metrics retention
  • Automated container right-sizing
  • Self-hosted or SaaS option
  • Technical account manager
K8s Services

Custom pricing based on needs

  • Ideal for CTOs who need help managing Kubernetes
  • 24 x 7 Pager
  • Managed Kubernetes Upgrades
+5 more
  • Managed Add-ons
  • Cluster networking
  • Ongoing cluster maintenance
  • Node management
  • Shared Slack channel

Is Polaris worth the price?

Good value

Polaris offers a very generous free tier, providing essential Kubernetes policy and best practice tools at no cost, making it highly accessible for small teams.

The move to custom pricing for 'Insights Enterprise' and 'K8s Services' suggests a significant jump in cost, likely aligning with enterprise-level solutions. This structure is best for small teams starting with Kubernetes policy enforcement, and larger organizations needing comprehensive managed services or advanced insights.

Full Polaris pricing: every plan, hidden costs and alternatives

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Polaris by the numbers

Polaris compared with 220 Compliance tools on Toolradar, as of Oct 2026
Metric Polaris Peer median Position (1 is best)
Free plan Yes 18% have one n/a
Integrations listed 2 2 #3 of 22 (joint) tools with at least one integration recorded
User rating 4.3/5 (across the web, 311 ratings) 4.4/5 #67 of 108 (joint) tools with 20+ reviews

Each position is counted among the tools that have data for that row, as noted under it. All Compliance data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “Polaris by the numbers”, Oct 2026.

Reviews

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4.3/5

Across 311 verified user reviews on Trustpilot, SourceForge, G2

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Polaris FAQ

How many pre-built configuration policies are included with Polaris?

Polaris comes with over 30 built-in configuration policies. These policies help users enforce best practices and identify potential issues within their Kubernetes configurations.

Can users create their own custom policies in Polaris?

Yes, Polaris allows users to write custom policies. This is done using an intuitive JSON syntax, providing flexibility to define specific organizational requirements.

Does Polaris offer any automated remediation capabilities for identified issues?

Polaris can automatically remediate issues based on the criteria defined in its policies. This feature helps streamline the process of maintaining compliant Kubernetes configurations.

Is Polaris an open-source project?

Yes, Polaris is an open-source policy engine designed for Kubernetes. It is part of Fairwinds' open-source offerings.

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