Convert CAPS in Google Docs

Capitalizing a large portion of text or an especially long title can be a pain. Doing the opposite—converting capital letters to lowercase—is equally a waste of time. This task is now quick and easy in Google Docs on the web.

Choose “Capitalization” from the Format menu in Docs, and select one of the following:

• lowercase, to make all the letters in your selection lowercase.
  
• UPPERCASE, to capitalize all the letters in your selection.
  
• Title Case, to capitalize the first letter of each word in your selection.
  

It’s that easy. This feature allows you to spend less time formatting and more time on the things that matter!

Source: https://gsuiteupdates.googleblog.com/2017/03/convert-text-to-all-caps-and-more-in.html