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Best AI Tools for Grammar & Writing

Best AI tools for checking grammar, spelling, and writing style

Updated: January 2026 4 Tools Reviewed

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  1. 1 Grammarly — Grammarly is a writing assistant tool offering Grammar checking, Tone detection, Style suggestions
  2. 2 ProWritingAid — ProWritingAid is a writing assistant tool offering Detailed reports, Style analysis, Integrations
  3. 3 Hemingway Editor — Hemingway Editor is a writing assistant tool offering Readability scoring, Complexity highlighting, Simple interface
  4. 4 Wordtune — Wordtune is a writing assistant tool offering Sentence rewriting, Tone adjustment, Summarization

How We Evaluated These Tools

We assessed each tool based on the following criteria specific to grammar & writing:

1 Error detection
2 Style suggestions
3 Integrations
4 Tone options
5 Languages
6 Pricing

Top 4 AI Tools for Grammar & Writing

1

Grammarly

4.5 Freemium

Grammarly is a writing assistant tool offering Grammar checking, Tone detection, Style suggestions. Built for Professionals and Students, it provides with a free tier available. AI-powered writing assistant for grammar, style, and clarity.

Key Features:

Grammar checking Tone detection Style suggestions Plagiarism check

Why it's great for grammar & writing:

  • Excellent grammar
  • Wide integration
  • Free tier
Pricing: Free / $12/mo
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2

ProWritingAid

4.3 Freemium

ProWritingAid is a writing assistant tool offering Detailed reports, Style analysis, Integrations. Built for Authors and Students, it provides with a free tier available. Comprehensive writing analysis tool for in-depth improvement.

Key Features:

Detailed reports Style analysis Integrations Fiction focus

Why it's great for grammar & writing:

  • Detailed analysis
  • Great for fiction
  • Affordable
Pricing: Free / $10/mo
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3

Hemingway Editor

4.1 One-time

Hemingway Editor is a writing assistant tool offering Readability scoring, Complexity highlighting, Simple interface. Built for Writers and Marketers, it provides with a free tier available. Writing tool focused on clear, readable prose.

Key Features:

Readability scoring Complexity highlighting Simple interface Offline app

Why it's great for grammar & writing:

  • Focus on clarity
  • Free online
  • Simple
Pricing: Free / $20
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4

Wordtune

4.1 Freemium

Wordtune is a writing assistant tool offering Sentence rewriting, Tone adjustment, Summarization. Built for Professionals and Writers, it provides with a free tier available. AI writing companion that rewrites and improves sentences.

Key Features:

Sentence rewriting Tone adjustment Summarization Browser extension

Why it's great for grammar & writing:

  • Good rewriting
  • Free tier
  • Easy to use
Pricing: Free / $10/mo
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Quick Comparison

Tool Best For Pricing Free Tier
Grammarly Professionals $12/mo Yes
ProWritingAid Authors $10/mo Yes
Hemingway Editor Writers $20 Yes
Wordtune Professionals $10/mo Yes
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Frequently Asked Questions

Which grammar checker is most accurate?
Grammarly and ProWritingAid lead in accuracy. Both catch more than basic spell-checkers and offer style improvements.
Is Grammarly worth paying for?
For regular writers, yes. Premium adds advanced checks, tone detection, and plagiarism scanning. Free tier handles basics well.
Can AI check my writing style?
Yes, tools like Hemingway focus on readability, Grammarly on clarity and tone, ProWritingAid on detailed style analysis.
Fact-Checked Expert Reviewed Regularly Updated
Last updated: January 18, 2026
Reviewed by ToolScout Team, AI & Software Experts
Our Editorial Standards

How We Research & Review

Our team tests each tool hands-on, evaluates real user feedback, and verifies claims against actual performance. We follow strict editorial guidelines to ensure accuracy and objectivity.

Hands-on testing User feedback analysis Regular updates

Disclosure: Some links on this page may be affiliate links. We may earn a commission if you sign up through our links, at no extra cost to you. This doesn't affect our editorial independence. Learn more about our review process.