Grammarly
AI writing assistant for grammar, style, tone, and professional communication
What is Grammarly?
Grammarly is the most widely used AI writing assistant, with over 40 million daily active users. Unlike generative AI tools that create content from scratch, Grammarly is primarily an editing and enhancement tool — it analyzes existing writing and suggests corrections for grammar, spelling, punctuation, clarity, conciseness, tone, and inclusivity.
The browser extension integrates Grammarly directly into Gmail, Google Docs, LinkedIn, Slack, Twitter, and any text field in a web browser — making it available wherever you write. Grammarly Business adds brand tone guidelines, style guides, and analytics on team writing quality — useful for ensuring all customer communications match brand standards. GrammarlyGO is its generative AI feature, allowing users to generate text, rewrite paragraphs, adjust tone, summarize, and respond to emails with AI assistance. Grammarly's strength is contextual editing — understanding the full document context to suggest improvements that go beyond simple spell-check. For non-native English speakers and any professional communicating in English, Grammarly provides a meaningful quality floor.
Key Features
- Grammar & Spell Check
- Tone Detection & Adjustment
- Clarity & Conciseness Suggestions
- GrammarlyGO (generative AI)
- Plagiarism Detection (Premium)
- Browser Extension (universal integration)
- Google Docs Add-on
- Grammarly Business (team style guides)
- Writing Analytics
- Microsoft Word & Outlook Integration
Pros & Cons
Pros
- Works everywhere — browser extension covers Gmail, Docs, LinkedIn, Slack
- Tone detection helps align business communication with intended impression
- Free plan is genuinely useful for daily writing
- Most trusted AI editing tool — 40M+ daily users
Cons
- Not a content generation tool — works best enhancing existing writing
- Some suggestions are overly conservative and change voice
- Premium is expensive at $30/mo for primarily an editing tool
- Plagiarism checker requires Premium ($30/mo) which seems steep
Pricing
Model: Freemium + subscription
| Plan | Price | Key Limits |
|---|---|---|
| Free | $0 | Grammar + spell check, tone detection |
| Premium | $30/mo | Full suggestions, plagiarism check, GrammarlyGO |
| Business | $25/user/mo | 3+ users, style guides, analytics, admin |
Frequently Asked Questions
- Is Grammarly free?
- Yes. Grammarly's free plan includes grammar, spelling, and punctuation corrections plus basic tone detection — available on all platforms. Premium ($30/mo) adds advanced suggestions, plagiarism detection, and GrammarlyGO generative features.
- Does Grammarly work in Google Docs?
- Yes. Grammarly has a dedicated Google Docs add-on that provides real-time suggestions directly in Docs. The browser extension also works in Gmail and Google Slides.
- Is Grammarly an AI tool?
- Yes. Grammarly uses machine learning models for grammar checking, style analysis, and tone detection. GrammarlyGO, its generative AI feature, uses large language models to generate, rewrite, and summarize text.