Grammarly
Market LeaderAI-powered writing assistant for grammar, clarity, and tone
👥 30M+ users💰 $13B valuation
✓ Last verified: March 2026
Grammarly is the leading AI writing assistant focused on improving grammar, spelling, punctuation, clarity, and tone. It works across virtually every platform via browser extensions, desktop apps, and mobile keyboards. With its generative AI features, Grammarly now also helps draft and rewrite text, though its core strength remains editing and polishing existing writing.
Our Ratings
10
Ease of Use
8
Output Quality
8
Value
7
Support
5
Versatility
Key Features
- ✓Real-time grammar, spelling, and punctuation correction
- ✓Tone detection and adjustment suggestions
- ✓Clarity and conciseness rewrites
- ✓Plagiarism detection (Premium)
- ✓Works across browsers, desktop apps, and mobile
Best For
- 👍 Anyone who writes emails, documents, or social posts regularly
- 👍 Non-native English speakers improving their writing
- 👍 Professionals who need polished, error-free communication
Limitations
- ⚠️ Generative AI features are not as strong as dedicated LLMs
- ⚠️ Premium features require a paid subscription
- ⚠️ Occasionally flags stylistic choices as errors
Integrations
Google DocsMicrosoft WordSlackGmailChromeSafari
Pricing Plans
Official pricing pageMost Popular
Prices shown are in USD. Verify current pricing on Grammarly's website.
Pricing
Free planYes
Basic grammar and spelling checks
Starting price$12/mo
Modelfreemium
Unlimited
Unlimited grammar checks; AI features usage-capped
Quick Facts
DifficultyBeginner
Team sizeany
API accessNo
Mobile appYes
Data privacymedium
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