The J.E.D.I. plugin for Divi allows you to Export your Divi website as a Layout Kit Plugin or Child Theme.
Read the J.E.D.I plugin review on Elegant Themes.
Comes as a free (with limited features) and pro version
All you need is one click to package up your website’s demo content for distribution to your customers, for your own use or to sell in the 3rd party Divi marketplace.