LanguageTool
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Multilingual grammar and style checker
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LanguageTool Product Information
LanguageTool Overview
LanguageTool is an open-source grammar, style and spell checker that supports over 30 languages making it one of the most comprehensive multilingual writing assistants available. The tool goes significantly beyond basic spell checking to identify stylistic issues, overused words, unclear phrasing an...
This product stands out with features such as:
- âĒ30 Plus Languages: Grammar and style checking across over 30 languages
- âĒAdvanced Grammar: Catches complex grammar errors beyond basic spell check
- âĒStyle Improvement: Identifies overused words, unclear phrasing and weak writing
- âĒBrowser Extension: Works in Gmail, Google Docs, Twitter and most web editors
- âĒDesktop App: Standalone application for document checking
- âĒAPI Access: Integrate grammar checking into custom applications
- âĒPersonal Dictionary: Add custom words and technical terminology
- âĒTone Detection: Identifies overly formal or informal language for context
How to Use Languagetool
Get started in a few simple steps
Install the Extension
Install the LanguageTool browser extension for Chrome, Firefox or Edge. It immediately begins checking your writing in Gmail, Google Docs and other web-based editors.
Review Suggestions
As you write, LanguageTool highlights errors and style issues. Click any highlighted text to see the explanation and suggested correction.
Configure Your Preferences
Set your target language, regional dialect and writing register. Add technical terms to your personal dictionary to prevent false positives in specialized writing.
LanguageTool's Core Features in Detail
Powerful features from LanguageTool
Multilingual Coverage
Supports over 30 languages with high-quality grammar and style checking making it the best choice for multilingual writers and non-native English speakers
Advanced Style Detection
Goes beyond grammar to identify stylistic weaknesses like overused words, redundant phrases and unnecessarily complex phrasing
Universal Integration
Browser extension works across virtually all web-based writing tools and editors without requiring the writing to be copied to a separate checker
Open Source Foundation
Open-source core ensures ongoing development by a community of contributors and provides transparency about how checking rules are applied
LanguageTool Use Cases
Discover how LanguageTool can benefit different users
Multilingual Writers
Writers working in multiple languages use LanguageTool as the only tool that provides comprehensive checking across all their writing languages
Non-Native English Writers
Non-native speakers use advanced grammar detection to catch subtle errors that basic spell checkers miss and that native speakers would notice
Professional Writers
Journalists, academics and professional writers use style checking beyond grammar to elevate prose quality and clarity
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