Cypress : JavaScript End to End Testing Framework. Fast, easy and reliable testing for anything that runs in a browser.
RequireJS : RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino ...
SlimerJS : A scriptable browser for Web developers
The HTML5 Shiv : The HTML5 Shiv enables use of HTML5 sectioning elements in legacy Internet Explorer and provides basic HTML5 styling for Internet Explorer 6-9, Safari...
A JavaScript file you can insert into your pages to simulate the Firebug console in browsers that are not named Firefox.
