Grammarly is a Google Chrome app which prevents you from making spelling, grammar and punctuation mistakes while writing anything on Internet like writing your emails, posting any text on social media, while using any notepad extension on Chromebook or whatever. The application marks auto marks all mistakes using a red squigly line like Word Pads and other office programs.
Jetpack already provides you a module for After the Deadline proofreading service for improving your writing via artificial intelligence to find your errors and offer smart suggestions. It also provides a number of customization options which you can easily set from your profile (Dashboard -> Users -> Your Profile).
Here is a list of ten free services that allows you to check and correct your common grammar mistakes.
While working in various office document like Liber Office Writer etc, they automatically capitalizes the very first letter after full stop. Now you can use a similar feature in your WordPress site’s posts, pages and other content types.
Pro Writing Aid, a Free WordPress plugin shows you a set of reports that helps you improve your writing on your blog. It is used by bloggers, authors, novelists etc to improve their writing as they edit.