LanguageTool: AI Grammar Checker for 30+ Languages
LanguageTool is an AI-powered grammar and style checker that corrects spelling, grammar, and punctuation across 30+ languages, plus rephrases sentences for clarity.
Overview
LanguageTool is a multilingual writing assistant that uses AI to catch more than just typos. It analyzes your text for grammar mistakes, spelling errors, awkward word choices, and stylistic issues, then offers clear suggestions to tighten up your writing. Support spans over 30 languages and dialects, with especially deep coverage for English, Spanish, German, French, Dutch, and Portuguese—English users can even pick from six regional variants to match their target audience.
Beyond error-catching, LanguageTool includes an AI rephrasing tool that can rewrite entire sentences to sound simpler, shorter, or more formal, giving writers flexibility to adjust tone on the fly. Whether you're drafting an email, polishing an essay, or proofreading business copy, the tool works directly in a text editor or through a browser add-on for real-time feedback as you type across the web.
Capabilities & Features
- Grammar checker
- Spell checker
- Style checker
- Proofreading
- Writing assistant
- Paraphrasing tool
- Multi-language support
- AI writing tool
Core Features
- AI-powered grammar checking
- Spelling correction
- Style and word choice improvement
- Advanced punctuation checking (including comma usage)
- AI rephrasing tool for sentence rewriting
- Support for 30+ languages and dialects, including six English variants
Use Cases
- Proofreading essays, reports, and academic papers before submission
- Polishing business emails and client-facing documents
- Improving fluency and accuracy for non-native English writers
- Rewriting stiff or wordy sentences into clearer, more concise phrasing
- Catching grammar and punctuation errors while writing directly in a browser
Best For
- Students
- Professional writers
- Businesses
- Non-profits
- ESL learners
- Bloggers and content creators
Pros
- •Covers grammar, spelling, punctuation, and style in one tool
- •Supports over 30 languages, making it useful for multilingual teams
- •AI rephrasing helps adjust tone and simplify complex sentences
- •Browser add-on enables real-time corrections across the web
- •Multiple English dialect options improve regional accuracy
Cons
- •Free version limits text length and advanced style corrections
- •Premium features are necessary to unlock the tool's full potential
- •Rephrasing suggestions may occasionally alter intended meaning
- •Pricing details aren't transparently listed upfront
How to Use
1. Paste your text into the LanguageTool editor, or start typing directly. 2. Review the highlighted grammar, spelling, and style suggestions as they appear. 3. Click on flagged issues to accept corrections or ignore them. 4. Use the rephrasing feature to simplify, shorten, or formalize specific sentences. 5. For on-the-go writing, install the browser add-on to get real-time suggestions on any website, email, or document.
Frequently Asked Questions
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Pricing
LanguageTool offers a free tier that covers basic spelling, punctuation, and some style fixes, while the Premium plan unlocks longer text checks and deeper style corrections for a more thorough proofreading experience.
Pricing data is provided as a summary. Visit the vendor website for full tier details.