Acunetix Web Application & API Security vs xssValidator: Side-by-Side Comparison (2026)

Acunetix Web Application & API Security: DAST scanner for web apps & APIs with automated vuln detection & remediation. built by Acunetix. Core capabilities include Automated web application and API discovery and crawling, Detection of 12,000+ vulnerabilities including zero-days, Blended DAST and IAST scanning..

xssValidator: A Burp Suite extension that automates XSS vulnerability detection and validation through custom payload generation and response analysis..

Both serve the Dynamic Application Security Testing market but differ in approach, feature depth, and target audience.

Acunetix Web Application & API Security is developed by Acunetix. xssValidator is open-source with 416 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Acunetix Web Application & API Security and xssValidator serve similar Dynamic Application Security Testing use cases: both cover XSS. Key differences: Acunetix Web Application & API Security is Commercial while xssValidator is Free, xssValidator is open-source. Review the feature comparison above to determine which fits your requirements.