Grammarly
Free AI writing assistance for clear, mistake-free communication
AI-Powered Summary
Grammarly is an AI writing assistant that checks grammar, spelling, tone, and clarity across web browsers, desktop apps, and popular workplace tools. It offers a free tier for basic corrections and paid plans that add sentence rewriting, tone adjustment, brand voice consistency, and generative AI text drafting. It targets individuals, teams, and large enterprises needing consistent, professional written communication.
Key Features
What makes Grammarly stand out
Grammar & Spell Check
Automatically detects and corrects grammar, spelling, and punctuation errors in your writing.
Tone Detection
Analyzes your text and shows how your writing tone will come across to readers.
Sentence Rewriting
Rewrites full sentences to improve clarity, conciseness, or tone while preserving your meaning.
Brand Voice Consistency
Provides suggestions to keep your writing aligned with your organization's brand style guide.
Generative AI Text
Generates draft text from prompts to help you compose emails, proposals, and other content.
Reader Reaction Feedback
Shows how your audience is likely to perceive and react to your writing before you send it.
Expert Source Insights
Strengthens your work with recommendations drawn from subject-matter experts and trusted sources.
Plagiarism Checker
Scans your text against online sources to detect potential plagiarism issues.
What's Great
- Works across many platforms including browsers, desktop apps, Slack, Google Docs, and Zendesk
- Generous free tier that covers basic grammar, spelling, and tone detection
- Strong privacy stance: does not sell user content or use it for ad targeting or third-party model training
- Enterprise plan includes data loss prevention and granular role permissions for large organizations
Things to Know
- Pro plan AI prompts are capped at 2,000, which may not be enough for heavy generative AI users
- Monthly Pro pricing ($30/month) is significantly more expensive than annual billing ($12/month)
- Free tier has very limited generative AI capabilities (only 100 prompts)
- Enterprise pricing is not transparent and requires contacting sales
Pricing Plans
All Grammarly pricing tiers and features
Per member per month, billed annually
Free
Pro
Enterprise
Real Cost Breakdown
Hidden Costs
- Monthly billing costs 2.5x more than annual billing ($30 vs $12/month)
- Generative AI prompts are capped per plan; heavy users may hit limits
- Enterprise pricing is undisclosed and requires a sales conversation
Cost Saving Tips
- Annual billing saves up to 60% ($12/month vs $30/month on Pro)
- The free tier covers basic grammar and spelling needs adequately for casual users
- Evaluate whether you actually need Pro features before upgrading from Free
The free tier is genuinely useful for basic writing checks, and annual Pro pricing at $12/month is reasonable for professionals, but monthly billing is expensive at $30.
Price Comparison
Compare Grammarly with similar tools
Grammarly is the premium choice in this category, priced 75% above the category average of $17/mo.
Best For
Professionals and teams who write frequently and need consistent, polished communication
Who Should NOT Use This
- Non-English writers who need full-featured multilingual support — Grammarly is primarily designed for English writing, with very limited support for other languages
- Developers looking for code-related writing tools — Grammarly focuses on natural language writing, not code documentation or technical markup
- Users who need heavy generative AI content creation — Even the Pro plan caps generative AI at 2,000 prompts, and the free tier only offers 100—dedicated AI content generators may be more suitable
- Budget-conscious freelancers who need advanced features — The Pro plan at $30/month (monthly billing) is relatively expensive for individual freelancers compared to simpler alternatives
Competitive Position
Grammarly's ubiquitous cross-platform presence via browser extensions and app integrations means it works wherever you write, without switching tools.
When to Choose Grammarly
- You need a writing assistant that works across many apps and platforms simultaneously
- Your organization requires enterprise-grade security, data loss prevention, and admin controls
- You want real-time grammar, tone, and clarity suggestions without leaving your current workflow
- You value a privacy-focused AI tool that does not sell or monetize user content
When to Look Elsewhere
- You primarily need long-form AI content generation rather than editing assistance
- You write mostly in languages other than English
- You want a completely free tool with no limits on advanced features
- You need deep integration with specific CMS platforms or developer tools
Strongest alternative: ProWritingAid
Learning Curve
Common Challenges
- Learning when to accept vs. reject suggestions, especially tone and style recommendations
- Configuring brand voice settings for team use
- Understanding the limits of generative AI prompts on each plan
Frequently Asked Questions
Common questions about Grammarly
Stacks Using Grammarly
See how others combine Grammarly with other tools
The Content Creator Stack
A complete AI toolkit for content marketers. From ideation with Claude to writing with Jasper, polishing with Grammarly, and visual design with Canva.
Solopreneur Marketing Stack
Everything a solopreneur needs for marketing. ChatGPT for strategy, Copy.ai for ad copy, Canva for graphics, and Grammarly for polish.
AI Writing Team Stack
Replace an entire content team with AI. Claude for long-form, Jasper for marketing copy, Copy.ai for ads, and Grammarly for editing.
Compare Grammarly
See how Grammarly stacks up against alternatives
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