CORS Policy Analyzer
Analyze CORS response headers and flag insecure patterns like wildcards combined with credentials. Free CORS security tool by Graph Tools.
Use this free CORS policy analyzer to evaluate HTTP response CORS headers and detect insecure configurations. Paste your Access-Control-Allow-Origin, Access-Control-Allow-Credentials, Access-Control-Allow-Methods, and related headers and get a security assessment covering wildcard origins, the credentials-with-wildcard vulnerability, overly permissive method allowlists, and exposed headers. Useful for web security engineers, backend developers, and QA teams validating cross-origin request policies.