TL;DR - LanguageTool
- Open-source grammar and style checker supporting 30+ languages including 6 English dialects
- AI paraphraser rewrites sentences to be simpler, shorter, or more formal
- Available as browser extension, desktop app, and plugins for Word, LibreOffice, and Google Docs
Pricing: Free plan available
Best for: Growing teams
4.4/5 across review platforms
Pros & Cons
Pros
- Good grammar checker
- Privacy focused
- Multi-language
- Browser extension
- Self-hostable
Cons
- Less advanced than Grammarly
- Premium expensive
- Integration limited
- AI features basic
- Style suggestions limited
Ratings Across the Web
4.4(61 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
Grammar checkerStyle suggestionsSpelling correctionMulti-languageBrowser extensionAPI access
Pricing Plans
Free TrialFree
Free
Basic checks
- 20,000 chars/check
- Basic grammar
- Limited suggestions
- Browser extension
Premium
$4.99/month
Advanced features
- 150,000 chars/check
- Style suggestions
- Word choice
- Punctuation checks
Teams
$6.99/per user/month
For teams
- All Premium features
- Team dashboard
- Usage stats
- Priority support
About LanguageTool
By Toolradar Team·
LanguageTool catches grammar, spelling, and style issues across 30+ languages. The AI-powered checker goes beyond basic errors to suggest clearer phrasing and detect tone inconsistencies. Available as a browser extension, desktop app, and API, it helps writers produce polished content whether drafting emails or long-form articles.
Reviews
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LanguageTool FAQ
What is LanguageTool?
LanguageTool is an AI-based grammar checker that helps users improve their writing across more than 30 languages and dialects. It works via browser extensions, desktop applications, and office plugins.
What features does LanguageTool offer?
LanguageTool offers grammar and spelling checks, punctuation correction, style improvements for overused phrases, an AI paraphrasing tool, casing corrections, and writing statistics to track productivity.
Where can I use LanguageTool?
LanguageTool works in Gmail, Outlook, Apple Mail, Google Docs, Microsoft Word, LibreOffice, web browsers for tweets and blogs, and supports academic and professional business writing.
What languages does LanguageTool support?
LanguageTool supports more than 30 languages and dialects, with primary coverage of English, Spanish, German, French, Dutch, and Portuguese.
Source: languagetool.org