Free Web Security Scanning Tools Nikto N-Stalker NStealth Free Edition Burp Suite Paros Proxy OWASP Webscarab SQL Injection SQL Power Injector by Francois Larouche Bobcat (based on "Data Thief" by Application Security, Inc.). Absinthe - free blind SQL injection tool SQLInjector by David Litchfield NGS Software database tools Cross-Site Scripting (XSS) RSnake's XSS Cheat Sheet XSS-Proxy IE Extens..