AWS Firewall Manager vs iam-lint: side-by-side comparison (2026)

AWS Firewall Manager: Centrally Manage Cloud Firewall Rules with AWS Firewall Manager. Built by Amazon Web Services, Inc.

iam-lint: A GitHub action that lints AWS IAM policy documents to identify security issues and misconfigurations with configurable severity levels and custom rules.

The table above shows where their features, integrations, deployment and company size fit differ.

AWS Firewall Manager is made by Amazon Web Services, Inc. iam-lint is open-source with 38 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. AWS Firewall Manager and iam-lint are both Cloud Security Posture Management products, and both cover AWS. Key differences: AWS Firewall Manager is Commercial while iam-lint is Free, iam-lint is open-source. Use the table above to see where features, deployment and company size fit differ.