  jQuery.Feyn is a tool for drawing Feynman diagrams with Scalable Vector
Graphics (SVG), written in JavaScript and runs in modern browsers. It features
predefined propagator styles, vertex types, and symbols. Math formulae can be
included as external graphics, or typeset with TeX through MathJax library. The
generated SVG code can be easily modified to make fine adjustments and
conveniently transferred using copy-and-paste.
