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KubeLinter

KubeLinter is StackRox's Apache-2.0 static analysis tool that checks Kubernetes YAML files and Helm charts against best practices for security and production readiness.

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Introduction

KubeLinter analyses Kubernetes YAML files and Helm charts and checks them against best practices, with a focus on production readiness and security. It is part of the StackRox project.

The source code is at stackrox/kube-linter on GitHub under the Apache-2.0 licence, with about 3,500 stars; the most recent commit was on 4 November 2026.

Features

  1. YAML and Helm: Lint manifests and charts.
  2. Default checks: Security and reliability checks.
  3. Configurable: Enable, disable or add checks.
  4. Fast CLI: Single binary.
  5. CI friendly: Non-zero exit on findings.

Pros

  1. Free to use: Open source under Apache-2.0.
  2. Maintained: Commits as recent as 4 November 2026.
  3. Community: About 3,500 GitHub stars.

Cons

  1. Static only: Does not inspect running clusters.
  2. Narrower than platforms: Pair with Kubescape for broader coverage.
kube-linter lint ./manifests

Resources:

Pricing

KubeLinter is free and open source under the Apache-2.0 licence.

  1. Teams writing Kubernetes manifests.
  2. Helm chart maintainers.
  3. Not a fit for runtime security.

Conclusion

KubeLinter is a fast, focused linter for Kubernetes manifests and charts.

Alternatives

Other tools on CheckOps that cover similar ground. Open a page, or compare one with KubeLinter side by side.