BeyondGrammar (by ProWritingAid) allows you to integrate grammar checking, spell checking, style improvements, and terminology checking into the Redactor editor. Suggestions are underlined and you can quickly accept them. As you type, new issues are identified and underlined. Other functionality includes: personal dictionaries, integrated thesaurus, and custom replacements.
Over 600,000 people use our state-of-the-art grammar checker. It contains many unique features that you won't find in other solutions. These include:
Note: To use this plugin you will need to sign up for a trial license.