GoJS is a flexible library that can be used to create a number of different kinds of interactive diagrams, including data visualizations, drawing tools, and graph editors.
d3-funnel.js is javascript chart library based on d3.js. It can make us create svg based funnel charts easily for web applications.
RKGraphs.js is a JavaScript chart library, we can use it to create some customizable, svg based charts and graphs dynamically for web app.