It depends on what you want to want to do - this library has a wider scope than others I've seen. The closest I know would be Raphael, which is nice in that it

It depends on what you want to want to do - this library has a wider scope than others I've seen. The closest I know would be Raphael, which is nice in that it also supports IE (Canvas): http://raphaeljs.com/ http://raphaeljs.com/ If you just want Graphs/Charts, here's a few off the top of my head: http://www.deensoft.com/lab/protochart/ http://www.deensoft.com/lab/protochart/ http://www.liquidx.net/plotkit/ http://www.liquidx.net/plotkit/ http://code.google.com/p/flotr/ http://code.google.com/p/flotr/