One of the major concerned developers have is the library download size on the users’ browsers. While there has not been any change in the size in version 17.0, the following are the details from the previous version, 16.0.
Size of React version 16.0.
react is 5.3 kb (2.2 kb gzipped).
react-dom is 103.7 kb (32.6 kb gzipped).
react + react-dom is 109 kb (34.8 kb gzipped).
