w3af - w3af is a Web Application Attack and Audit Framework
SIREN.io - Siren is an investigative intelligence platform.
Nikto - Nikto is an Open Source (GPL) web server scanner which performs comprehensive tests against web...
DataWalk - DataWalk is a software platform to connect numerous large data sets, both external and internal, into a single repository for fast visual analysis.
Shodan - Shodan is the world's first search engine for Internet-connected devices.
SpiderFoot - Open source intelligence (OSINT) automation tool.