No. 13 of 27 ·Infrastructure Testing Tools

KubeLinter

Mac · Linux · Self-hosted

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

KubeLinter is ranked #13 of 27 in infrastructure testing tools on Freedom251. It runs on Linux, macOS, Self-hosted. There is a free plan.

KubeLinter plans and pricing

All plans

KubeLinter Free Apache License 2.0 · no paid tiers listed github.com · 4 Oct 2026

Compared on infrastructure testing tools

Terraform analysis: No
Kubernetes analysis: Yes
CloudFormation analysis: No
Custom policies: Yes
Secrets detection: Yes
Pull request scanning: Yes

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The record

Purpose: KubeLinter statically analyzes Kubernetes YAML files, Helm charts, and Kustomize manifests against best practices for production readiness and security.
Default checks: Default checks cover practices such as running containers as non-root, enforcing least privilege, and storing sensitive information only in secrets.
Custom checks: Users can enable or disable checks and create custom checks to match organizational policies.
Lint feedback: When a check fails, KubeLinter reports remediation recommendations and returns a non-zero exit code.
Install options: The project documents installation through Go, release binaries, Homebrew or LinuxBrew, nix-shell, and Docker.
Output formats: KubeLinter can generate multiple output formats in one run, including SARIF and JSON.
Signing: KubeLinter container images are signed with cosign, and the project provides a public key for verification.
Keyless verification: The README says keyless cosign signatures are not production ready.
Vulnerability reporting: The security policy directs confidential vulnerability reports to Red Hat's Product Security team.
License: KubeLinter is licensed under the Apache License 2.0.
Community support: The project invites users to join its Slack workspace to engage with maintainers and other users.
Compatibility caveat: The README warns that command usage, flags, and configuration file formats may change in the future.
Latest release: The latest release page opened for this research identifies version v0.8.3.
Maker: The README says KubeLinter was created by StackRox and is now powered by Red Hat.
Price from: Free

Where it ranks on Freedom251

Best Infrastructure Testing Tools in 2026#13 of 27
Best Kubernetes Security Software in 2026#6 of 24
Best Infrastructure as Code Security Software in 2026#13 of 22

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Sources

github.com/stackrox/kube-linter· checked 4 Oct 2026
github.com/stackrox/kube-linter/blob/main/SECURITY· checked 4 Oct 2026
github.com/stackrox/kube-linter/releases/latest· checked 4 Oct 2026