No matter how great of a writer you are, chances are you make grammar or spelling mistakes in your work. Most publishers do edit their works and get rid of the errors in their content before sharing them with the world. Proofread Bot for WordPress could give you a helping hand. This script automatically searches through your content for potential grammar, style, and plagiarism issues.
Once you install this plugin, a Proofread Bot button gets added to your interface. You can pass your content through this script to see whether you have made any major mistakes. This plugin is not exactly free. You do get free proofreading for 600 words per day. In order to do more, you will have to buy checks.
Proofread Bot is not perfect by any means. It certainly can not do miracles for poorly written articles. But it is a nice tool to have to double check your work with and make sure you have not made glaring errors in it. The premium packages are not that expensive either which is nice.