Marionette.js

Marionette simplifies your Backbone application code with robust views and architecture solutions. Organize your app in terms of small Views. Marionette makes it easy to compose rich layouts out of small components. Show a sorted filtered list without breaking a sweat. Have a massive collection? Want to add or remove an item? No worries! Learn to love the details. We've added tons of features from templateHelpers, to a declarative UI hash, that will keep you from ever wanting to go back. Share complex UI interactions across views. Behaviors are like mixins, without all of the pain associated with property collision. Decoupled communication between your application components with a powerful messaging system. Write classes with the same API as your views. Marionette Objects support features like extend, events, initialize, and more.