Best AI Tools for Grammar and Proofreading
15 tools · Updated Mar 2026
Not all AI tools for grammar and proofreading are equal. Our top pick is Grammarly — AI writing assistant for grammar, clarity, tone, and style improvements. We've ranked 15 options by relevance, with clear guidance on when to use each one. 6 of these are free or freemium.
About This Use Case
Polish your writing with AI-powered grammar checking and style suggestions. Perfect for anyone who wants error-free, professional content.
Top 15 Tools for Grammar and Proofreading
Grammarly
RecommendedAI writing assistant for grammar, clarity, tone, and style improvements.
Why it fits: Excellent for grammar and proofreading with features like grammar and writing-assistant.
- Grammar and spell check
- Tone detection
- Plagiarism checker
ChatGPT
Good FitOpenAI's conversational AI assistant for writing, coding, analysis, and creative tasks.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Conversational AI with GPT-5 family
- Advanced reasoning (o3, o4-mini)
- Code generation and execution
Claude
Good FitAnthropic's AI assistant for analysis, writing, and coding with 200K context.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- 200K token context window
- Extended thinking mode
- Code generation and debugging
MarketMuse
Good FitAI content intelligence platform for topic modeling and content strategy.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Content gap analysis
- Topic modeling
- Content scoring
Sudowrite
Good FitAI creative writing tool built for fiction authors and storytellers.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Story engine
- Scene expansion
- Prose rewriting
Typeface
Good FitEnterprise generative AI for on-brand text, images, and multimedia content.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- On-brand content generation
- Image and text creation
- Brand asset training
Writer.com
Good FitEnterprise AI writing platform for brand consistency and content governance.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Brand style guide enforcement
- Terminology management
- AI content generation
AI Writer
Good FitAI article generator with source citations and verifiable content creation.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Article generation from headlines
- Source citation
- SEO editor
AI21 Labs
Good FitAI research company offering Jamba language models and enterprise AI APIs.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Jamba foundation models
- Enterprise AI APIs
- Text generation
Acrolinx
Good FitEnterprise AI content governance for brand consistency and compliance.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Content governance
- Brand guideline enforcement
- Terminology management
Anyword
Good FitAI copywriting platform with predictive performance scoring for marketing copy.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Predictive performance score
- Ad copy generation
- Landing page copy
Article Forge
Good FitAutomated AI article generator producing SEO-optimized content from keywords.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- One-click article generation
- SEO optimization
- Auto image insertion
Bramework
Good FitAI blogging assistant with keyword analysis and SEO-optimized draft generation.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Blog post drafting
- Keyword analysis
- Outline generator
Closerscopy
Good FitAI copywriting tool with SEO analysis and proven copywriting frameworks.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Copywriting frameworks
- SEO audit tool
- Long-form editor
Cohere
Good FitEnterprise AI platform with language models for generation, search, and classification.
Why it fits: A solid AI Writing tool that can help with grammar and proofreading.
- Text generation API
- Semantic search
- Text classification