CORSy vs CORStest: 2026 Comparison
CORSy is a free security scanning tool. CORStest is a free security scanning tool. Compare features, ratings, integrations, and community reviews side by side to find the best security scanning fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
DevSecOps teams scanning third-party APIs and SaaS integrations will get the most from CORSy because it catches CORS header misconfigurations that let attackers bypass same-origin policy restrictions; most teams never audit this attack surface until it causes a breach. The tool is free and command-line native, which means it fits into CI/CD pipelines without licensing friction or vendor lock-in. Skip this if you need a GUI, reporting dashboards, or coverage beyond HTTP header analysis; CORSy is deliberately narrow and won't replace a full web application scanner.
AppSec teams running frequent web application assessments will get the most from CORStest because it isolates CORS misconfigurations that slip past broader vulnerability scanners, and the free pricing means you can run it as often as you want without licensing friction. With 419 GitHub stars and active maintenance, it's trusted enough for inclusion in scanning pipelines where CORS-specific coverage matters. Skip this if your org needs a generalist scanner that also catches SQL injection, XSS, and authentication flaws in one tool; CORStest does one thing and won't replace your primary web application scanner.
