Word Cloud Generator Google Docs
Google makes available a free add-in for Google Docs that you can used to generate a word cloud. Install the add-on here. After it's installed you'll find it in your Add-ons menu when you have a document open in Google Docs.
Simply select the Classic or Modern view. In this example I'm using the Sedona Conference's Best Practices, Recommendations & Principles for Addressing Electronic Document Production.
The settings for the add-on allow individual words to be removed, or the total number of words included to be limited.