Backbone.js
781,951 websites

Backbone.js is free to use

http://backbonejs.org/

Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing A...

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Require JS
856,419 websites

Require JS is free to use

http://requirejs.org/

RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node.

Market Share by Top Websites

1 Require JS is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Backbone.js is clearly lagging behind, losing to Require JS in all segments.

Websites Categories

1 Require JS has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Health, Vehicles and 11 other categories.

2 Backbone.js is leading in Arts & Entertainment, Games, Adult, Lifestyle and 5 other categories.

Geography

1 Require JS is leading in most countries, including United States, Germany, United Kingdom, China and 139 other countries.

2 Backbone.js is leading in Sweden, Finland, Hungary, Iran and 18 other countries.