webhint : webhint is a linting tool that will help you with your site's accessibility, speed, security and more, by checking your code for best practices and co...
mitmproxy : mitmproxy is your swiss-army knife for debugging, testing, privacy measurements, and penetration testing. It can be used to intercept, inspect, modify...
domsnitch : A passive reconnaissance tool inside the DOM (experimental)
Burp Suite : Burp Suite is an integrated platform for performing security testing of web applications. Its various tools work seamlessly together to support the en...
Kali Linux : Penetration Testing Linux OS containing tools to test the security of system or a network.
This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.