PunkSPIDER

PunkSPIDER is a global-reaching web application vulnerability search engine.

Acunetix

Audit your website security and web applications for SQL injection, Cross site scripting and other…

Burp Suite is an integrated platform for performing security testing of web applications.

Censys helps organizations, individuals, and researchers find and monitor every server on the Internet to reduce exposure and improve security.

Fiddler is a debugging program for websites.

Network recon framework, including a web interface to browse Nmap scan results.

Learn, download and use the most flexible and powerful web application security testing framework.

Nikto is an Open Source (GPL) web server scanner which performs comprehensive tests against web…

Vulnerability assessment and collaborative penetration testing platform

Find security vulnerabilities right from your browser.

Shodan is the world’s first search engine for Internet-connected devices.

Search engine for the Internet of Things

Subgraph Vega | Free and Open Source Web Application Vulnerability and Security Scanner

The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding…

Network mapping service

A fully automated, active web application security reconnaissance tool.

w3af is a Web Application Attack and Audit Framework

Wapiti allows you to audit the security of your web applications. Wapiti is a command line tool.