Multi-layer writing checks
Checks spelling, grammar, punctuation, casing, and style, with examples on the site showing issues such as word order, tense, commas, apostrophes, and agreement.
LanguageTool
LanguageTool is an AI grammar checker and writing assistant for spelling, grammar, punctuation, style, and casing across web, desktop, and office workflows.
Overview
LanguageTool is an AI-based grammar checker and writing assistant that helps users find and correct spelling, grammar, punctuation, casing, and style issues. It can be used in a web editor, through browser add-ons, and in desktop and office apps, so suggestions follow the writing workflow rather than staying in one place.
The product supports more than 30 languages and dialects and automatically detects language in many contexts. Its core purpose is to help individuals and teams produce clearer, more consistent text, whether they are drafting an email, editing a document, or refining a longer piece of writing.
Features
Multilingual support
Supports more than 30 languages and dialects, including English, German, Portuguese, Spanish, French, and Dutch, and offers multiple English variants.
Real-time inline corrections
Provides suggestions while you type in the browser and in supported apps, with inline underlining and one-click application of fixes.
Sentence paraphrasing
Includes a paraphrasing tool for rewriting sentences in a more formal, fluent, simple, or concise way, and Premium adds unlimited sentence paraphrasing.
Writing statistics
Offers writing statistics in the editor so users can review languages used, errors made, suggestions applied, and overall productivity.
Cross-platform integrations
Supports desktop and office workflows through browser add-ons, an editor, Windows and macOS apps, and integrations for Google Docs, Microsoft Word, and LibreOffice.
Use Cases
Writing on the web
Draft emails, blog posts, or other web text and get suggestions directly while typing in the browser, without switching away from the page.
Office document proofreading
Edit documents in Microsoft Word, Google Docs, or LibreOffice while keeping grammar, spelling, and punctuation suggestions available inside the document workflow.
Multilingual writing and editing
Write in multiple languages or variants, with automatic language detection and support for several major languages plus English regional varieties.
Long-form and formal writing
Review longer or more formal texts such as dissertations, essays, books, or professional correspondence, where style consistency and punctuation accuracy matter.
Team writing consistency
Use the team plan to share a style guide and dictionary so multiple users can follow the same wording and terminology.
Pros and Cons
Pros
- Covers multiple writing issues in one tool, including spelling, grammar, punctuation, casing, and style.
- Supports more than 30 languages and several English variants.
- Works across browsers, desktop apps, and office tools, which makes it useful in different writing environments.
- Offers an editor with statistics, a personal dictionary, and a style guide for more consistent writing.
- Includes a paraphrasing feature for sentence rewrites rather than only error correction.
Cons
- The free version only covers spelling, simple punctuation, and some style mistakes; Premium is needed for the full set of checks.
- The pricing page shows plan choices and team options, but the exact prices were not readable in the captured content.
- Some integrations are described broadly, and the site says more app support is still in progress.
FAQ
Is LanguageTool free?
LanguageTool is available in two versions. The free version corrects spelling as well as simple punctuation and some style mistakes, while Premium shows all errors and adds the fullest set of suggestions.
Which languages does LanguageTool support?
LanguageTool supports more than 30 languages and dialects, with main languages including English, Spanish, German, French, Dutch, and Portuguese. For English, it offers several standard varieties such as US, UK, Canada, Australia, New Zealand, and South Africa.
How does LanguageTool show corrections?
Suggestions and error cards appear automatically while you type, and you can click a suggestion to apply it. The browser add-on can work across web services, and the desktop apps integrate with supported writing programs.
Does LanguageTool offer team plans?
Yes. The pricing page lists team accounts, including user management, a shared style guide, and a team dictionary for companies and small teams.
What apps and platforms does it work with?
LanguageTool works across browsers, an online editor, desktop apps for Windows and macOS, and add-ins for office workflows such as Google Docs, Microsoft Word, and LibreOffice.
Quick Facts
- Category
- AI grammar checker
- Primary use
- Grammar, spelling, punctuation, and style checking
- Platforms
- Web, browser add-ons, Windows, macOS
- Office integrations
- Google Docs, Microsoft Word, LibreOffice
- Languages
- 30+ languages and dialects
- Vendor domain
- languagetool.org
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