arbor.js
76 websites

arbor.js offers both free and paid options

http://arborjs.org/

Arbor is a graph visualization library built with web workers and jQuery.

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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...

Market Share by Top Websites

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

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

Websites Categories

1 Backbone.js has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Adult, Lifestyle and 20 other categories.

2 arbor.js hasn't got a lead over Backbone.js in any websites category.

Geography

1 Backbone.js is leading in most countries, including United States, United Kingdom, Canada, Germany and 161 other countries.

2 arbor.js hasn't got a lead over Backbone.js in any country.