| Prowler | Rego Policy Libraries | |
|---|---|---|
| Size | 1,625 cloud API checks, 112 framework mapping files | 13,775 control-level checks, 740 policy files |
| Scope | AWS, Azure, GCP and Kubernetes accounts | hosts (CIS, STIG), cloud, SaaS, Kubernetes, IaC, AI governance, 54 regulatory and management standards |
| Language | Python | OPA Rego v1, Apache 2.0 |
Prowler maps its cloud checks onto frameworks; it does not evaluate a framework's own obligations. Our cloud CIS modules cover the same accounts in Rego, and the regulators are first-class modules.
Counts were taken from each project's public repository on 2026-10-12; ours is make count, re-verified by CI.
Method and the full table: docs/COMPARISON.md.
Is one a replacement for the other? Usually not: Prowler is AWS, Azure, GCP and Kubernetes accounts; this library is the layer that evaluates every framework a regulator or auditor names, and runs inside the same OPA, Conftest, Gatekeeper and Kubewarden that the others plug into.