“D3 allows you to bind arbitrary data to a Document Object Model (DOM), and then apply data-driven transformations to the document. As a trivial example, you can use D3 to generate a basic HTML table from an array of numbers. Or, use the same data to create an interactive SVG bar chart with smooth transitions and interaction.” (source)
See also D3 on GitHub.
I haven’t used it yet, this is just a “good-to-know-about-it” note.