React JS
1,345,615 websites

React JS is free to use

https://facebook.github.io/react/

React is a JavaScript library by Facebook for building user interfaces. React abstracts away the DOM from you, giving a simpler programming model and better performance. React can also render on the server using Node, and it can power nativ...

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TrackJS
397,405 websites

TrackJS offers both free and paid options

https://trackjs.com/

JavaScript error detection app for detecting JS errors on customer visits.

Market Share by Top Websites

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

2 In terms of market share, TrackJS is clearly lagging behind, losing to React JS in all segments.

Websites Categories

1 React JS has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Games, Community & Society and 15 other categories.

2 TrackJS is leading in Lifestyle, Business & Consumer Services, E-commerce & Shopping, Heavy Industry & Engineering and one other category.

Geography

1 React JS is leading in most countries, including United States, United Kingdom, Canada, France and 153 other countries.

2 TrackJS is leading in China, Russia, Taiwan, Slovakia and 5 other countries.