Best Infrastructure Testing Tools in 2026
Updated
In short: Terratest is ranked #1 of 26 as of 4 October 2026, ahead of Checkov and Test Kitchen. The best-ranked option with a free plan is Checkov. The lowest first paid tier on this page is CIS-CAT Pro Assessor at $200/mo.
Infrastructure testing tools help check infrastructure code, configurations and deployed environments. Compare cloud support and execution model to see where checks may fit, then weigh deployed checks, config compliance and provisioning tests according to what you need to validate. IaC support and policy as code provide further comparison points. Free-plan availability and “Paid from” information can help you assess access and cost. Conftest, Terratest and cfn-lint are among the tools shown, alongside Cinc Auditor and terraform-plugin-testing. Think about which infrastructure layers and workflows you need to examine, and use the listed criteria to compare the kinds of testing and coverage each option offers.
26 infrastructure testing tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 Terratest No phone app RecognisedPhone appDocumentedFree plan 8.2Free IaC support: Terraform, OpenTofu, Terragrunt, Packer, HelmConfig compliance: YesProvisioning tests: Yes
- 2 Checkov No phone app RecognisedPhone appDocumentedFree plan 8.0Free
- 3 Test Kitchen No phone app RecognisedPhone appDocumentedFree plan 8.0Free IaC support: Chef Infra cookbooks, Ansible, PowerShell DSC, Puppet, SaltConfig compliance: YesProvisioning tests: Yes
- 4 Chef InSpec No phone app RecognisedPhone appDocumentedFree plan 7.8Free
- 5 KICS No phone app RecognisedPhone appDocumentedFree plan 7.7Free
- 6 AWS CloudFormation No phone app RecognisedPhone appDocumentedFree plan 7.6Free
- 7 Cinc Auditor No phone app RecognisedPhone appDocumentedFree plan 7.1Free Config compliance: Yes
- 8 Conftest No phone app RecognisedPhone appDocumentedFree plan 7.1Free
- 9 OpenSCAP No phone app RecognisedPhone appDocumentedFree plan 7.0Free
- 10 Sonobuoy No phone app RecognisedPhone appDocumentedFree plan 6.9 Config compliance: Yes
- 11 Cloud-Radar No phone app RecognisedPhone appDocumentedFree plan 6.8 IaC support: AWS CloudFormationConfig compliance: NoProvisioning tests: Yes
- 12 terraform-compliance No phone app RecognisedPhone appDocumentedFree plan 6.8Free
- 13 cfn-nag No phone app RecognisedPhone appDocumentedFree plan 6.7Free
- 14 cfn-lint No phone app RecognisedPhone appDocumentedFree plan 6.7Free IaC support: AWS CloudFormation, AWS SAMConfig compliance: YesProvisioning tests: No
- 15 TFLint No phone app RecognisedPhone appDocumentedFree plan 6.6Free IaC support: TerraformConfig compliance: NoProvisioning tests: No
- 16 TaskCat No phone app RecognisedPhone appDocumentedFree plan 6.5 IaC support: AWS CloudFormationProvisioning tests: Yes
- 17 Kubetest2 No phone app RecognisedPhone appDocumentedFree plan 6.4 IaC support: TerraformProvisioning tests: Yes
- 18 Molecule No phone app RecognisedPhone appDocumentedFree plan 6.3 IaC support: AnsibleConfig compliance: YesProvisioning tests: Yes
- 19 KubeLinter No phone app RecognisedPhone appDocumentedFree plan 6.3Free
- 20 kubeconform No phone app RecognisedPhone appDocumentedFree plan 6.3Free IaC support: Kubernetes manifestsConfig compliance: NoProvisioning tests: No
- 21 terraform-plugin-testing No phone app RecognisedPhone appDocumentedFree plan 6.1Free IaC support: TerraformProvisioning tests: Yes
- 22 kube-score No phone app RecognisedPhone appDocumentedFree plan 5.8
- 23 pytest-ansible No phone app RecognisedPhone appDocumentedFree plan 5.2 IaC support: AnsibleProvisioning tests: Yes
- 24 CIS-CAT Pro Assessor No phone app RecognisedPhone appDocumentedFree plan 5.2$200/mo
- 25 ClusterLoader2 No phone app RecognisedPhone appDocumentedFree plan 5.0
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which infrastructure testing tool is ranked first on Samsung Mobile US Press?
Terratest is ranked #1 of 26 with a score of 8.2. Checkov is second and Test Kitchen third.
How many of these have a free plan?
16 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, CIS-CAT Pro Assessor has the lowest first paid tier we found: $200/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.