Grammarly

AI Writing

An AI-powered English writing assistant. Provides grammar and spell checking along with style improvement, tone adjustment, and plagiarism detection.

4.4
WebChrome拡張macOSWindowsiOSAndroidMicrosoft Office

What is Grammarly?

Grammarly is an AI-powered English writing assistant used by over 30 million people worldwide. Beyond basic grammar and spell checking, it analyzes text for clarity, engagement, and delivery, offering improvement suggestions. GrammarlyGO adds AI-powered text generation and rewriting capabilities, enabling efficient creation of emails, reports, and social media posts. The Tone Detector feature lets you preview the impression your text conveys, improving the quality of business communications. Available across browser extensions, desktop apps, Microsoft Office integration, and mobile keyboards, it works in virtually any writing environment. The Enterprise version also provides Style Guide features to unify writing style across teams.

Pricing Plans

1Free (basic grammar and spell check)
2Premium $12/mo (annual, advanced style improvement)
3Business $15/member/mo (team features)
4Enterprise: contact sales

Key Features

AI grammar, spelling, and punctuation checking
Style and clarity improvement suggestions
GrammarlyGO (AI text generation and rewriting)
Tone Detector (text impression analysis)
Plagiarism Detection
Style Guide (team-wide writing style consistency)

Pros & Cons

Pros

  • Industry-leading English grammar and spell check accuracy
  • Precise tone and style improvement suggestions
  • Works on any website via browser extension
  • AI text generation and rewriting with GrammarlyGO
  • Robust proofreading features even on the free plan

Cons

  • Does not support Japanese writing assistance
  • Premium features (advanced style improvement) require a paid plan
  • Cannot be used offline

Frequently Asked Questions

Q. Is Grammarly free to use?

A. Yes, the Free plan provides basic grammar and spell checking at no cost. Advanced style improvements and tone adjustment require Premium ($12/mo, annual billing).

Q. Does Grammarly support Japanese?

A. Currently, it is specialized for English writing assistance. Japanese proofreading is not available. It is a tool for writing emails and reports in English.

Q. How does Grammarly differ from ChatGPT?

A. Grammarly specializes in real-time English proofreading and improvement, running continuously across all input fields. ChatGPT excels at general-purpose text generation and Q&A. Grammarly is better suited for consistently improving the quality of your English writing.

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