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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Isotope
1,229,795 websites

Isotope is free to use

http://isotope.metafizzy.co/

Filter & sort magical layouts

Market Share by Top Websites

1 Isotope is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

2 Backbone.js is leading in Top 10K Sites.

Websites Categories

1 Isotope has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Health, Business & Consumer Services and 10 other categories.

2 Backbone.js is leading in Arts & Entertainment, Games, Adult, Lifestyle and 6 other categories.

Geography

1 Isotope is leading in most countries, including United States, Italy, Germany, India and 159 other countries.

2 Backbone.js is leading in Guernsey, Virgin Islands, U.S. and French Guiana.