Shodan Alternatives

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

Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

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

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

w3af is a Web Application Attack and Audit Framework

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

Network mapping service

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

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

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

A fully automated, active web application security reconnaissance tool.

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