Node.js has 197 repositories on GitHub. It is an open-source, cross-platform, JavaScript Runtime Environment for developing server-side and networking applications. Node.js platform has a rich library of JavaScript modules that simplifies web development to a greater extent. Node.js drives automation improves customer engagement and generates sales. It is an event-driven lightweight model that is suitable for data-sensitive applications, and executable across operating systems. PHP, Python, Ruby, .NET, and Java are close competitors of Node.js.
The following graph shows the historical trend in the percentage of websites using Node.js. (By W3Techs.com)

Find growth rates of Node.js compared to all other web servers in Node.js Report.