I really like this approach, in fact that's what I used for http://www.patternify.com/ http://www.patternify.com/ This way the whole tool can be 100% client-si

I really like this approach, in fact that's what I used for http://www.patternify.com/ http://www.patternify.com/ This way the whole tool can be 100% client-side javascript, without a need for any back-end.