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...
SSL Server Test : This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
The Big List of Naughty Strings : The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.
Batect : Batect allows you to define your development tasks (building, running, testing, linting and more) in terms of one or more Docker containers, run those...
Memorable site for testing clients against bad SSL configs.
