AI Grammar Checker

LanguageTool

LanguageTool is an AI-based grammar checker and writing assistant that helps correct spelling, grammar, punctuation, style, and paraphrasing.

LanguageTool logo

LanguageTool

Visit website

What is LanguageTool?

LanguageTool is a multilingual writing assistant that checks spelling, grammar, punctuation, casing, and style across browsers, desktop apps, and office tools. It also includes a paraphrasing tool and statistics for tracking writing habits.

LanguageTool vs Similar AI Tools

Pricing ModelFree, FreemiumFree, FreemiumFreeFree
Free Credits
Key Features
  • Grammar checking
  • Spell checking
  • Punctuation correction
  • AI content detection
  • Plagiarism checking
  • Fact checking aid
  • AI-generated text detection
  • Sentence-level analysis
  • Probability breakdown for AI vs. human writing
  • DeepSearch plagiarism detection
  • AI content detection
  • Grammar and spell check
Pros
  • Works across major browsers and desktop apps
  • Supports many languages and dialects
  • Combines AI detection with plagiarism, grammar, fact checking, and readability tools
  • Includes shareable reports, scan history, and sentence-level highlights
  • Free to use
  • No registration required
  • Combines plagiarism, AI detection, grammar, summarization, and paraphrasing
  • Clear visual feedback with color-coded match reporting
Cons
  • Some advanced suggestions require Premium
  • Feature depth varies by platform and integration
  • Free scans are limited
  • Best results still require human review
  • Detection accuracy can vary by content type
  • Pricing details beyond free access are not clearly specified
  • Detailed pricing tiers are not shown on the homepage
  • Feature depth may be more than some users need for simple checks
Best For
  • Writers who need grammar and style help
  • Multilingual users
  • Content teams
  • Publishers
  • Students
  • Teachers
  • Students
  • Teachers

How to use LanguageTool?

  1. 1Create a free account or start using the browser add-on.
  2. 2Install the extension or desktop app for your preferred platform.
  3. 3Type or paste text into the editor or supported app.
  4. 4Review the highlighted suggestions and apply the fixes you want.
  5. 5Use the paraphraser or Picky Mode for more advanced rewriting and style suggestions.

LanguageTool Key Features

  • Grammar checking
  • Spell checking
  • Punctuation correction
  • Casing correction
  • Style suggestions
  • AI paraphrasing
  • Browser extensions
  • Desktop apps for Windows and macOS
  • Multilingual support
  • Writing statistics

LanguageTool Use Cases

  • Editing emails and messages
  • Proofreading blog posts and articles
  • Checking academic papers and theses
  • Improving office documents
  • Writing in multiple languages
  • Rephrasing sentences for clarity or tone

LanguageTool Pricing & Free Credits

LanguageTool currently operates on a Free, Freemium model.

Free TierFree Credits

Free

$0

Basic spelling, punctuation, and some style corrections with limited suggestions.

Paid Plans

Premium

Varies

Adds advanced grammar, style, and punctuation suggestions plus extra writing features.

Team

Contact for pricing

Business accounts for organizations and teams.

Free

$0

Basic spelling, punctuation, and some style corrections with limited suggestions.

Premium

Varies

Adds advanced grammar, style, and punctuation suggestions plus extra writing features.

Team

Contact for pricing

Business accounts for organizations and teams.

LanguageTool Pros & Cons

Pros

  • Works across major browsers and desktop apps
  • Supports many languages and dialects
  • Offers grammar, style, and paraphrasing tools
  • Free version is available
  • Privacy-focused browser add-on

Cons

  • Some advanced suggestions require Premium
  • Feature depth varies by platform and integration
  • Best experience may require an account

What is LanguageTool best for?

  • Writers who need grammar and style help
  • Multilingual users
  • Students and academics
  • Teams and businesses editing documents
  • People who want proofreading across apps

LanguageTool FAQ

Top free alternatives to LanguageTool

Paraphrasing Tool - Word Paraphraser logo

An AI paraphrasing tool that rewrites text in multiple modes while preserving meaning and improving clarity.

Free
Winston AI logo

Winston AI is an AI content detector and plagiarism checker for identifying machine-generated text, images, and deepfakes.

Free
Copyleaks logo

Copyleaks is an AI content, plagiarism, and authenticity detection platform for text, images, video, and code.

Free

Best alternatives AI Tools to LanguageTool

Dechecker logo

Dechecker is a free AI content detector that analyzes text for AI-generated patterns and offers rewrite guidance.

Paraphrasing Tool - Word Paraphraser logo

An AI paraphrasing tool that rewrites text in multiple modes while preserving meaning and improving clarity.

Free
Hemingway Editor logo

Hemingway Editor helps you write more clearly by highlighting complex sentences, passive voice, adverbs, and grammar issues.

Winston AI logo

Winston AI is an AI content detector and plagiarism checker for identifying machine-generated text, images, and deepfakes.

Free