More than a Grammar Checker

LanguageTool is an AI-based grammar checker. Paste your text or start typing below to check grammatical errors and spelling mistakes across languages.

30+ Languages
2000+ Organizations
4M+ Users
Document Statistics
The quick brown fox jumps over the lazy dog.
Teh The cat sat on the mat.
This sentence has no errors.
English (US)
2 errors found

Powerful Features for Better Writing

Discover what makes LanguageTool the most comprehensive writing assistant

Advanced Spell Checking

Catch spelling mistakes and typos with our intelligent spell checker that understands context.

Grammar Analysis

Detect grammar errors, punctuation mistakes, and improve sentence structure.

Style Suggestions

Get recommendations for better word choice, tone, and writing style.

Paraphrasing Tool

Rewrite sentences to be more formal, concise, or engaging with AI-powered suggestions.

Writing Statistics

Track your progress with detailed statistics on errors, improvements, and writing habits.

Multi-Platform

Use LanguageTool everywhere - browser extensions, desktop apps, and mobile.

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All Languages Supported

LanguageTool works with all languages available on your server

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