What is Dropbox - Version 1.0 What is Dropbox? Are you living in 21th century and still don't know what Dropbox is?This is small article written by very simple language that explains what Dropbox is. If you still don't use Dropbox, you must to know how it can help you. The article will answer on questions: What is Dropbox, How Does It Work, What is Dropbox for, What Is Dropbox Functionality.