Best Infrastructure Policy as Code Tools in 2026
Updated
In short: Open Policy Agent is ranked #1 of 24 as of 3 October 2026, ahead of Terraform and Google Config Sync. The best-ranked option with a free plan is Terraform. The lowest first paid tier on this page is Terraform at $0.10/mo.
24 infrastructure policy as code tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Policy language | |
|---|---|---|---|---|---|---|---|---|
| 1 | Open Policy Agent | 7.4 | RecognisedAPIDocumented | Free | — | — | Rego | View |
| 2 | Terraform | 7.4 | RecognisedAPIDocumented | $0.10/mo | Yes | — | — | View |
| 3 |  Google Config Sync | 7.3 | RecognisedAPIDocumented | Free | Yes | — | Rego | View |
| 4 | HashiCorp Nomad | 7.3 | RecognisedAPIDocumented | — | — | — | Sentinel | View |
| 5 | AWS CloudFormation | 7.2 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 6 |  Google Cloud Terraform Policy Validation | 6.0 | RecognisedAPIDocumented | Free | Yes | — | Rego | View |
| 7 |  Kubewarden | 6.0 | RecognisedAPIDocumented | — | Yes | — | WebAssembly-compatible languages including Rust, Go, CEL, and Rego | View |
| 8 |  Cloud Custodian | 5.9 | RecognisedAPIDocumented | Free | Yes | — | YAML | View |
| 9 |  Conftest | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 10 |  cfn-lint | 5.8 | RecognisedAPIDocumented | Free | — | — | AWS CloudFormation Guard DSL | View |
| 11 |  Checkov | 5.8 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 12 | KICS | 5.6 | RecognisedAPIDocumented | — | Yes | — | OPA Rego | View |
| 13 |  terraform-compliance | 5.6 | RecognisedAPIDocumented | — | Yes | — | BDD-style feature files | View |
| 14 |  Tirith | 5.6 | RecognisedAPIDocumented | — | Yes | — | JSON | View |
| 15 |  Google Cloud Organization Policy | 5.5 | RecognisedAPIDocumented | — | Yes | — | YAML and JSON | View |
| 16 |  KubeLinter | 5.5 | RecognisedAPIDocumented | — | Yes | — | YAML configuration; CEL expressions | View |
| 17 | Fairwinds Polaris | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 18 | Open Policy Agent Gatekeeper | 5.3 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 19 |  Terraform Test Framework | 5.1 | RecognisedAPIDocumented | — | — | — | Python | View |
| 20 | Chef Infra | 5.0 | RecognisedAPIDocumented | — | — | — | Ruby DSL | View |
| 21 |  Nirmata Enterprise for Kyverno | 5.0 | RecognisedAPIDocumented | — | No | — | Kubernetes-native YAML and CEL | View |
| 22 |  PolicyForge | 5.0 | RecognisedAPIDocumented | — | — | — | OPA/Rego | View |
| 23 |  Kyverno | 4.9 | RecognisedAPIDocumented | — | — | — | — | View |
| 24 | Firefly | 4.8 | RecognisedAPIDocumented | — | No | 2,499 /mo | — | View |
Is your platform 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 policy as code tool is ranked first on Inferse?
Open Policy Agent is ranked #1 of 24 with a score of 7.4. Terraform is second and Google Config Sync third.
How many of these have a free plan?
9 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Terraform has the lowest first paid tier we found: $0.10/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.