Backbone.js is a JavaScript framework with a RESTful JSON interface and is based on the model–view–presenter (MVP) application design. Developed by Jeremy Ashkenas
License: Open Source
Aurelia offers a more modern approach with features like two-way data binding and dependency injection, making it suitable for complex applications. In contrast, Backbone.js is lightweight and minimalistic, ideal for smaller projects requiring basic structure but may not scale effectively for larger applications.