Grammarly is a grammar checker and proofreader for Microsoft Word, Excel, PowerPoint, and other Office applications. It is available as a standalone product or as a part of the Grammarly Office suite.

Grammarly is a freeware program that runs on Microsoft Windows, macOS, and Linux. It can be installed on a single computer or server. Grammarly can be used to check the grammar, spelling, and syntax of text documents, webpages, emails, and social media posts.

Grammarly can detect and correct errors in the following areas:

- Syntax
- Mechanics
- Pronouns
- Verbs
- Nouns
- Adjectives
- Articles
- Prepositions
- Conjunctions
- Vocabulary

The Grammarly suite includes the following products:

- Grammarly Premier
- Grammarly Editor
- Grammarly LanguageTagger
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