What languages does LanguageTool support?

LanguageTool supports over 30 languages, including English (US, UK, AU, CA, NZ, ZA), Spanish, German, French, Dutch, Portuguese, and many more. Some languages like English and German have more advanced AI rules than others.

Does it work with Microsoft Word and Google Docs?

Yes, LanguageTool offers dedicated add-ins for Microsoft Word (Office 365 and 2016+) and Google Docs, allowing you to check your documents without leaving the application.

Is LanguageTool free to use?

Yes, there is a free version that provides basic grammar and spelling checks for up to 10,000 characters. No account is required for the most basic web-based checks.

What is 'Picky Mode'?

Picky Mode is an optional setting that enables even more rigorous checks for style, typography, and punctuation, ideal for professional or academic writing.

Is there an API available for developers?

Yes, LanguageTool offers a public API for developers. There are free tiers with rate limits and Premium API plans for high-volume commercial use.

How does LanguageTool differ from Grammarly?

While similar, LanguageTool stands out for its extensive multilingual support (30+ languages vs Grammarly's English-only focus) and its open-source core, which appeals to privacy-conscious users.

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Text rewriting

Freemium

LanguageTool

Multilingual AI grammar and style checker supporting 30+ languages with advanced paraphrasing, style suggestions, and seamless integrations across browsers and office apps.

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Rating

Reviews

Upvotes

3 months ago

Listed

Grammar Checker

Spell Checker

Paraphrasing Tool

Writing Assistant

Multilingual AI

Style Editor

Browser Extension

Open Source Core

Tool information

Provider

LanguageTooler GmbH

Platforms

Web

Windows

macOS

iOS

Android

Chrome

Firefox

Edge

Safari

Opera

Languages

English

German

Spanish

French

Portuguese

Dutch

Polish

Catalan

Italian

Russian

Chinese

Japanese

API Available

Yes

Added to directory

3 months ago

Last updated

about 2 months ago

Rating

Not available

Pricing

Freemium

About LanguageTool

What the tool does and who it's for

LanguageTool is an advanced, AI-powered writing assistant that provides multilingual grammar, style, and spell checking. Supporting over 30 languages, it goes beyond basic proofreading to offer sophisticated style suggestions, tone adjustments, and a dedicated paraphrasing tool. It is widely used for its ability to detect errors that traditional spell checkers miss, such as confused words (e.g., 'their' vs. 'there'), incorrect hyphenation, and overused phrases. The tool is available as a browser extension, desktop application, and specialized add-in for popular office suites like Microsoft Word and Google Docs. Its open-core model allows for both a robust free version and a feature-rich premium tier for power users and businesses.

Key capabilities

Advanced Multilingual Grammar Check: Detects errors in over 30 languages including English, Spanish, French, and German.

AI Paraphrasing Tool: Rephrase sentences to be more formal, fluent, simple, or concise.

Picky Mode: Provides extra-strict checks for formal writing, identifying subtle style issues and typography errors.

Seamless Integrations: Works directly in Google Docs, Microsoft Word, Outlook, and most web browsers.

Personal Dictionary: Add custom terms and technical jargon to avoid false error flags.

Tone & Style Suggestions: Offers improvements for word choice, redundant phrases, and overall readability.

Privacy Focused: Allows for local installation/offline use via the open-source core for privacy-conscious users.

Mother Tongue Feature: Detects 'false friends' and typical errors made by non-native speakers based on their native language.

Pricing

Freemium — plans below

Free

Basic grammar and spelling checks
Up to 10,000 characters per text field
Limited access to Picky Mode
Basic paraphrasing suggestions
Browser extensions and web editor

Premium for Individuals

For Teams

$9.48/mo

Everything in Premium
Centralized team management
Shared style guides and team dictionary
2+ users (pricing scales with user count)
Advanced data security for businesses

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Common questions about LanguageTool