- crevasse 49 A split-screen Markdown editor and previewer
- jquery-nested_attributes 26 jQuery plugin that makes it easy to dynamically add and remove records when using ActiveRecord's nested attributes
- forms 11 Ruby form framework
- jquery-slugger 9 A fairly powerful jQuery plugin for creating slugs and allowing your user to edit it
- change.js 4 A stupid simple money calculation library that deals in cents.