Grammarly is a writing assistant that checks grammar, spelling, and style in real time. Founded in 2009, it helps users eliminate errors and improve clarity across emails, documents, and web forms. The tool uses AI to enhance writing quality instantly.
Features
- Real-Time Grammar Checking: Detects grammatical errors, punctuation mistakes, and spelling issues as you type across browsers and apps.
- Tone Detection: Analyzes text to identify tone (formal, casual, confident) and suggests adjustments to match your intended communication style.
- Plagiarism Detector: Compares your text against billions of web pages to flag potential plagiarism issues in Premium plans.
- Platform Integrations: Works across Chrome, Safari, Edge, Microsoft Word, Google Docs, Gmail, Slack, and mobile keyboards for iOS and Android.
- Style Guide Customization: Business users can create brand-specific style guides with terminology preferences, tone rules, and formatting standards for team consistency.
Use Cases
- For Students: Catches citation errors and improves essay clarity while checking for accidental plagiarism before submission deadlines.
- For Content Writers: Maintains consistent brand voice across blog posts and ensures error-free copy before publication.
- For Business Professionals: Polishes client emails and reports to project professionalism and reduce miscommunication risks.
- For Non-Native English Speakers: Provides contextual grammar corrections and vocabulary suggestions to improve fluency and confidence in written English.
Grammarly streamlines writing across multiple platforms with AI-powered grammar and style checking. It serves individuals and teams needing consistent, error-free communication at scale.
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TypeFreemium
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Best ForCreators, Freelancers, Marketers, Agencies, Small Business, Enterprise
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FeaturesGrammar Check, Tone Detector, Plagiarism Check, Generative AI, Clarity Suggestions
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Use CaseGrammar Spelling Correction, Tone Style Adjustments, Plagiarism Detection Tool, AI Writing Assistance
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PlatformWeb, Mac, Windows, iOS, Android, Extension
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IntegrationAPI, Zapier
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Website Authority70 - 90
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Website Monthly Visits10m - 100m
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Company Age11 - 20 years
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Company Size1000+ members
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Company Type
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Company Location
| Plan | Price | Features |
| Free | $0 per month (free forever) | Write without spelling and grammar mistakes See your writing tone Generate text with 100 AI prompts per month Grammar and spell checker Works across browsers, desktop, and mobile Help center access |
| Pro | $12 per month (billed monthly) | Everything in Free, plus: Rewrite full sentences with a click Adjust your writing tone with ease Write fluently in English Unlimited personalized suggestions Detect plagiarism and AI generated text Generate text with 2,000 AI prompts per month Use inclusive language Keep citations consistent Priority support |
| Enterprise | Custom pricing | Everything in Pro, plus: Proactive AI that works in every app and tab Dedicated support BYOK encryption Custom roles and permissions Data loss prevention Cost center visibility SAML single sign-on Audit Logs API Unlimited AI prompts per member |
(Disclaimer: Data sourced from or provided by Grammarly. Please verify before purchase.)
