AppCheck SPA Scanner vs PortSwigger: side-by-side comparison (2026)

AppCheck SPA Scanner: DAST scanner for Single Page Applications using headless browser technology. Built by AppCheck.

PortSwigger: A comprehensive toolkit for web application security testing, offering a range of products and solutions for identifying vulnerabilities and improving security posture. Built by PortSwigger Ltd.

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

AppCheck SPA Scanner is made by AppCheck. PortSwigger is made by PortSwigger Ltd. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. AppCheck SPA Scanner and PortSwigger are both Dynamic Application Security Testing products, and both cover Web Security. Key differences: AppCheck SPA Scanner is Commercial while PortSwigger is Free. Use the table above to see where features, deployment and company size fit differ.