css3-mediaqueries-js : make CSS3 Media Queries work in all browsers (JavaScript library)
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...
ProseMirror : In-browser structured text editing component. A toolkit for building rich-text editors on the web.
jsPDF : A library to generate PDFs in client-side JavaScript.
jsfx : This is a javascript library (with frontend) for sound effect generation.
A lightweight library that provides tools for organizing asynchronous code