Free AWS ARN Parser & Explainer

Every AWS resource has an Amazon Resource Name (ARN) with a fixed structure: arn:partition:service:region:account-id:resource. Paste one below to see each field explained and flag common mistakes — wildcards where you didn't mean one, a malformed field, or an account ID that doesn't look like an AWS account ID.

Runs entirely in your browser. Nothing is sent anywhere or logged. Static checks only — for AI-Powered reasoning across a full policy, use the full analyzer below.