How to install the Grammarly plugin for Word Go to the Grammarly website and click "Get the add-in" to download the free MS Office Grammarly plugin.

First, download the Grammarly add-in to make it available in Microsoft Outlook and Word. Follow the steps below. Visit Grammarly on the web and download the add-in on your computer.

Grammarly has made its way to the Mac and online versions of Microsoft Word. Now, people that rely on Grammarly to review documents will be able to do so on two additional popular platforms.