{"slug":"grammarly-vs-languagetool)","question":"Grammarly vs LanguageTool","answer":"Grammarly offers superior AI-powered writing suggestions and integrates across more platforms, while LanguageTool provides a more affordable, open-source alternative with strong grammar checking for 30+ languages. Grammarly excels for professional writing and native English speakers, whereas LanguageTool better serves budget-conscious users and non-English language learners.","answer_curated":true,"verdict":"Choose Grammarly if you need advanced AI-driven writing refinement, plagiarism detection, and professional-grade tone analysis for English-only workflows. Choose LanguageTool if you prioritize affordability, multilingual support, or value open-source transparency over cutting-edge AI features.","keyDifferences":[{"label":"Monthly Subscription Cost","winner":"b","entityAValue":"$12/month (annual)","entityBValue":"Free with $8/month premium"},{"label":"AI-Powered Suggestions","winner":"a","entityAValue":"Advanced generative AI with tone detection","entityBValue":"Rule-based with limited machine learning"},{"label":"Languages Supported","winner":"b","entityAValue":"English only","entityBValue":"30+ languages including German, French, Spanish"},{"label":"Browser Extensions Available","winner":"a","entityAValue":"Chrome, Safari, Edge, Firefox (5 major browsers)","entityBValue":"Chrome, Firefox, Safari, Edge (4 major browsers)"},{"label":"Open Source & Transparent","winner":"b","entityAValue":"Closed-source proprietary technology","entityBValue":"Open-source codebase on GitHub"}],"winner":{"slug":"grammarly","name":"Grammarly"},"confidence":"high","entities":[{"name":"Grammarly","slug":"grammarly","url":"https://www.aversusb.net/entity/grammarly","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/grammarly"},{"name":"LanguageTool","slug":"languagetool","url":"https://www.aversusb.net/entity/languagetool","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/languagetool"}],"faqs":[{"question":"Is Grammarly or LanguageTool free to use?","answer":"Both offer free versions. Grammarly's free tier is heavily limited, providing basic grammar and spelling checks only. LanguageTool's free tier is comprehensive, including grammar, spelling, and style checking with no restrictions. However, both offer premium subscriptions ($12/month for Grammarly, $8/month for LanguageTool) for advanced features."},{"question":"Which tool supports non-English languages?","answer":"LanguageTool supports 30+ languages including German, French, Spanish, Portuguese, Dutch, Italian, and Polish. Grammarly supports English only, making it unsuitable for multilingual writers or language learners."},{"question":"Can these tools detect plagiarism?","answer":"Grammarly Premium includes plagiarism detection that scans 16+ billion web pages to verify originality. LanguageTool does not offer plagiarism detection as a feature."}],"attribution":{"source":"A Versus B","url":"https://www.aversusb.net/compare/grammarly-vs-languagetool)","license":"CC BY 4.0","citationFormat":"According to A Versus B (https://www.aversusb.net/compare/grammarly-vs-languagetool)), Grammarly offers superior AI-powered writing suggestions and integrates across more platforms, while LanguageTool provides a more affordable, open-source alternative with strong grammar checking for 3","dateModified":"2026-07-08T11:01:01.096Z"},"relatedQuestionsUrl":"https://www.aversusb.net/api/faq/grammarly-vs-languagetool)","relatedComparisonsUrl":"https://www.aversusb.net/api/v1/related/grammarly-vs-languagetool)","knowledgeGraphUrl":"https://www.aversusb.net/api/knowledge-graph/grammarly-vs-languagetool)","claimReviewSchema":{"@context":"https://schema.org","@type":"ClaimReview","@id":"https://www.aversusb.net/compare/grammarly-vs-languagetool)#claimreview","url":"https://www.aversusb.net/compare/grammarly-vs-languagetool)","inLanguage":"en-US","isAccessibleForFree":true,"conditionsOfAccess":"Free","claimReviewed":"Grammarly vs LanguageTool","reviewBody":"Grammarly offers superior AI-powered writing suggestions and integrates across more platforms, while LanguageTool provides a more affordable, open-source alternative with strong grammar checking for 30+ languages. Grammarly excels for professional writing and native English speakers, whereas LanguageTool better serves budget-conscious users and non-English language learners.","datePublished":"2026-07-08T11:01:01.024Z","dateModified":"2026-07-08T11:01:01.096Z","reviewRating":{"@type":"Rating","ratingValue":5,"worstRating":1,"bestRating":5,"alternateName":"High Confidence"},"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B","url":"https://www.aversusb.net"},"itemReviewed":{"@type":"WebPage","@id":"https://www.aversusb.net/compare/grammarly-vs-languagetool)","url":"https://www.aversusb.net/compare/grammarly-vs-languagetool)","name":"Grammarly vs LanguageTool","inLanguage":"en-US"}}}