Grammarly

Grammarly checks writing as you type. It underlines spelling and grammar mistakes, suggests shorter or clearer wording, flags a tone that may read as harsh or unsure, and offers rewrites of whole sentences. It also includes generative features that draft or rework text from a prompt.

Most people use it through the browser extension, which works in Gmail, Google Docs and most text boxes on the web, or through the desktop app and the add-in for Microsoft Word. There is a free tier with core corrections, and paid plans add more suggestions and team features.

It works best on everyday business writing: emails, reports and posts. Suggestions are not always right for your context, especially in technical or creative writing, so accept them one at a time. Companies with strict data rules should read how it handles the text it checks before rolling it out.