Free and open first
Best Infrastructure Testing Tools in 2026
Infrastructure testing tools help you examine infrastructure code, configurations, and running environments. Compare cloud support and IaC support with deployed checks, provisioning tests, and the execution model to see what each option covers and where checks can run. Config compliance and policy as code offer further ways to compare how rules are assessed. Free plan and Paid from provide access and pricing context. AWS CloudFormation, Conftest, and cfn-lint are among the named options, alongside tools such as Chef InSpec and KICS. Consider which checks fit the infrastructure and workflows you need to assess.
- 28 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Chef InSpec
Free plan Open source APILinuxMac+2Chef InSpec provides code-based checks, reusable profiles and multiple reporting options for infrastructure and applications.
- 2
Kubetest2
Free plan Open source APISelf-hostedKubetest2 brings cluster deployment and end-to-end testing into one extensible framework, with reference and external implementations listed.
- 3
Test Kitchen
Free plan Open source APILinuxMac+2Test Kitchen provides a command-based workflow for provisioning platforms and verifying infrastructure code.
- 4
AWS CloudFormation
Free plan APIiPhoneLinux+3CloudFormation brings template-based provisioning, change previews, and drift tracking to AWS resource management.
- 5
cfn-lint
Free plan LinuxMacSelf-hosted+1cfn-lint provides configurable checks and multiple output formats for CloudFormation template validation. Its best-effort handling of complex values is worth bearing in mind when interpreting results.
- 6
cfn-nag
Free plan LinuxMacSelf-hostedChoose cfn-nag if your team needs a free, customizable scanner focused on CloudFormation security patterns, including use in GitHub Actions or AWS CodePipeline.
- 7
CIS-CAT Pro Assessor
Free plan APILinuxMac+2Choose CIS-CAT Pro Assessor if your organization needs agentless CIS Benchmark assessments and CIS Controls mapping for internal systems.
- 8
Cinc Auditor
Free plan LinuxMacWindowsCinc Auditor offers a free route to run InSpec-compatible compliance and audit workflows across several operating systems and in CI.
- 9
KICS
Free plan LinuxMacSelf-hosted+1KICS combines static IaC analysis with adjustable queries and integrations across documented development tools.
- 10
Checkov
Free plan LinuxMacCheckov offers broad infrastructure-as-code scanning, policy customization, and CI and IDE integrations at no cost. Alpine users should note the project’s stated testing and Python requirements.
- 11
Conftest
Free plan LinuxMacWindowsConftest provides policy-based configuration checks with a broad set of inputs and CI outputs.
- 12
kubeconform
Free plan LinuxMacSelf-hosted+1Kubeconform provides specification-based checks for Kubernetes manifests, with options for custom schemas and CI workflows.
- 13
kube-score
Free plan LinuxMacSelf-hosted+2kube-score offers configurable static checks for Kubernetes resources, with browser, local, and CI/CD workflows.
- 14
OpenSCAP
Free plan LinuxMacSelf-hosted+1OpenSCAP brings SCAP content evaluation, scanning, policy customization, and scheduled assessments into a free tool collection.
- 15
KubeLinter
Free plan LinuxMacSelf-hostedKubeLinter offers configurable static checks for Kubernetes manifests, with output that can be used in automated workflows.
- 16
Serverspec
Free plan LinuxMacSelf-hosted+1Serverspec provides agentless server checks through familiar RSpec tests and documents many resource types and configuration-tool pairings.
- 17
TFLint
Free plan LinuxMacSelf-hosted+1TFLint provides local Terraform linting with cloud checks, extensible rules, and several output formats.
- 18
Sonobuoy
Free plan LinuxMacSelf-hosted+1Sonobuoy provides Kubernetes diagnostics and conformance tests at no cost, with custom plugins and air-gapped support.
- 19
ClusterLoader2
Free plan Self-hostedClusterLoader2 offers configurable Kubernetes load tests with a broad set of measurements and provider options.
- 20
terraform-compliance
Free plan LinuxSelf-hostedPick terraform-compliance if you need free policy tests for Terraform and want rules expressed in readable scenarios.
- 21
terraform-plugin-testing
Free plan LinuxMacterraform-plugin-testing provides focused Go tooling for checking Terraform provider behavior, from isolated units to real infrastructure operations.
- 22
Cloud-Radar
Free planCloud-Radar provides local template checks as well as functional testing through Taskcat and boto3.
- 23
Terratest
Free plan LinuxTerratest provides a broad Go-based toolkit for testing infrastructure locally and against deployed environments.
- 24
Molecule
Free plan LinuxMolecule provides a structured way to exercise Ansible projects locally or in continuous integration.
- 25
pytest-ansible
Free plan Linuxpytest-ansible can connect existing pytest workflows with Ansible collection tests and fixtures.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
More in Developer Tools
- In-Memory Databases25
- Integrated Development Environments65
- Integration Testing Tools26
- Interactive Application Security Testing Software14
- Internal Developer Portals27
- IoT Development Tools16
- IP Address Management Software43
- Issue Tracking Software40
- Java IDEs23
- JavaScript Build Tools27
- JavaScript Package Managers19
- JavaScript Testing Frameworks23