React is a JavaScript library created by Facebook

React is a User Interface (UI) library

React is a tool for building UI components

What is Babel?

Babel is a JavaScript compiler that can translate markup or programming languages into JavaScript.

With Babel, you can use the newest features of JavaScript (ES6 - ECMAScript 2015).

Babel is available for different conversions. React uses Babel to convert JSX into JavaScript.

What is JSX?

JSX stands for JavaScript XML.

JSX is an XML/HTML like extension to JavaScript.