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...
sqlmap : sqlmap is an open source penetration testing tool that automates the process of detecting and exploiting SQL injection flaws and taking over of databa...
badssl.com : Memorable site for testing clients against bad SSL configs.
Skipfish : Skipfish is an active web application security reconnaissance tool. It prepares an interactive sitemap for the targeted site by carrying out a recursi...
This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.