Overview
Grammarly helps over 30 million people write with confidence. Integrates everywhere (desktop apps, browser extensions, mobile keyboards) to fix typos, refine vocabulary, adjust tone, and generate text.
Available On
WindowsMacosIosAndroidWebMobile AppDesktop AppExtensionAPI
Key Features
Real-Time Spelling & Grammar Checking
Tone & Clarity Suggestions
Generative AI Text Completion (100 prompts/mo on Free)
Plagiarism Detection
Pros
- Works seamlessly inside every web browser, Slack, Word, and email client
- Tone detector prevents misunderstandings in professional emails
- Free tier catches the vast majority of common grammar and spelling errors
Cons
- Premium tier is a notable monthly subscription
- Occasionally suggests overly simplified sentence structures
Pricing Plans
FreeFREE
Free
- Basic grammar & punctuation
- Conciseness suggestions
- Tone detection
- 100 AI prompts/mo
PremiumPAID
$12/mo
- Full-sentence rewrites
- Vocabulary enhancements
- Tone adjustments
- Plagiarism checker
BusinessPAID
$15/mo
- Company style guides
- Brand tone profiles
- Centralized team analytics
- SAML SSO
User Reviews
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Integrations
Microsoft WordGoogle DocsSlackGmailOutlookSafariChrome
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Quick Info
Websitewww.grammarly.com
CategoryArtificial Intelligence
Team SizeENTERPRISE
ReleasedJanuary 15, 2023
Last UpdatedSeptember 20, 2026
Monthly Visits72.0M
API AvailableYes
Open SourceNo
Compare Grammarly
See how Grammarly stacks up against competitors side-by-side.
Grammarly vs QuillBotGrammarly vs WordtuneBuild Custom ComparisonAI Capabilities
Contextual grammar correction, tone detector, generative rewrite prompts, full-sentence rephrasing.
Best For
EducationCorporate CommunicationPublishingCustomer Support