grunt : Grunt is a task-based command line build tool for JavaScript projects
fuelux : Extends Twitter Bootstrap with additional lightweight JavaScript controls. Easy to install, customize, update, and optimize. All functionality covered...
Next.js : A minimalistic framework for server-rendered React applications
DOM Monster Bookmarklet : DOM Monster is a cross-platform, cross-browser bookmarklet that will analyze the DOM & other features of the page you're on, and give you its bill of ...