Grammarly is the world's leading automated proofreader. It checks for more than. 250 types of spelling, grammar, and punctuation errors, enhances vocabulary usage, and suggests citations.
If you have lots of people submitting content for your website, then you need to ensure that it is unique content and not regurgitated from another website. We use Grammarly, which is a great tool for plagiarism checking. We use the rule of 25% of unoriginal content or less then its good to go.
The Google Chrome extension is a bit of a bonus. If you are typing anywhere online, from a Tweet, a LinkedIn update to a post on your website, then Grammarly will check for you as you go.Social Snippet