CORStest vs CORSy: side-by-side comparison (2026)

CORStest: A security scanner that identifies Cross-Origin Resource Sharing (CORS) misconfigurations in web applications to detect potential vulnerabilities.

CORSy: A Python-based command-line tool that scans websites for CORS misconfigurations by analyzing HTTP response headers to identify potential security vulnerabilities.

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

CORStest is open-source with 419 GitHub stars. CORSy is open-source with 1,465 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. CORStest and CORSy are both Security Scanning products, and both cover Scanner, Misconfiguration. Use the table above to see where features, deployment and company size fit differ.