Prowler vs OpenSCAP
Both are alternatives to Vanta. Here's how they stack up — verified facts, no spin.
Also searched as OpenSCAP vs Prowler — same comparison, one verdict.
Prowler
TOP PICKOpen-source cloud security posture scanning with framework check packs.
Scans AWS, Azure, GCP and Kubernetes against hundreds of checks and maps them to compliance frameworks including CIS, SOC 2, HIPAA, GDPR and NIST. Runs as a CLI in CI or as a self-hosted app, and produces the technical-control evidence a compliance platform would otherwise gather for you.
OpenSCAP
SCAP-standard configuration scanning and hardening for Linux estates.
The reference implementation of SCAP, with profiles for CIS benchmarks, DISA STIG and PCI DSS. Where the estate is Linux servers rather than cloud APIs, this is the long-established way to prove hosts are hardened to a named standard.
Side by side
| Prowler | OpenSCAP | |
|---|---|---|
| Sovereignty Score | 92 | 84 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first | Yes | Yes |
| License | Apache-2.0 | LGPL-2.1 |
| Pricing | Free / self-host; optional paid hosted Prowler Cloud | Free / self-host |
Prowler is Macrostack's recommended Vanta alternative, so it's our pick here.
Prowler
Strengths
- +Framework mappings are built in — SOC 2, CIS, HIPAA, GDPR, NIST and more, not just raw findings
- +Runs in CI, so posture is checked on every change rather than the week before an audit
- +Covers the part of compliance that is genuinely automatable: technical control state
Trade-offs
- −Produces evidence, not an audit — no auditor relationship, no report
- −No policy management, security training tracking or vendor review workflow
- −Someone has to own the findings; the tool will not chase them
OpenSCAP
Strengths
- +An actual standard, recognised by auditors in regulated environments
- +Ships with Red Hat and Debian ecosystems; no new vendor
- +Remediation guidance, not only findings
Trade-offs
- −Host-level only — blind to cloud service configuration
- −Tooling and profile editing feel dated next to the cloud-native options
- −Narrow: one part of one control family
Related alternative guides
Facts verified 2026-09-01. Licenses and pricing change — spotted something out of date? That's a correction we want.