{
  "slug": "languagetool",
  "name": "LanguageTool",
  "company": "LanguageTool",
  "website": "https://languagetool.org/",
  "category": "productivity",
  "business_model": "freemium",
  "availability": "unknown",
  "launched": null,
  "tags": [
    "productivity",
    "ai-workflows"
  ],
  "updated": "2026-11-03",
  "sources": [
    {
      "title": "Official product page",
      "url": "https://languagetool.org/"
    },
    {
      "title": "Official plans or product documentation",
      "url": "https://languagetool.org/premium"
    }
  ],
  "selection": {
    "tasks": [
      "writing"
    ],
    "form_factor": "web-app",
    "platforms": [
      "web"
    ],
    "deployment": [
      "cloud"
    ],
    "offline": "unknown",
    "regions": [
      "unknown"
    ],
    "api": "unknown",
    "license": "unknown",
    "commercial_use": "unknown",
    "languages": [
      "unknown"
    ],
    "billing": {
      "models": [
        "free",
        "subscription"
      ],
      "free_allowance": "limited",
      "requires_subscription": "no"
    }
  },
  "selection_evidence": {
    "tasks": {
      "status": "editorial_inference",
      "note": "Editorial classification of the documented features; not a product-performance test."
    },
    "form_factor": {
      "status": "editorial_inference",
      "note": "Editorial classification of the documented features; not a product-performance test."
    },
    "platforms": {
      "status": "editorial_inference",
      "note": "Editorial classification of the documented features; not a product-performance test."
    },
    "deployment": {
      "status": "editorial_inference",
      "note": "Editorial classification of the documented features; not a product-performance test."
    },
    "offline": {
      "status": "unknown",
      "note": "This product-specific field was not established in this entry’s source review."
    },
    "regions": {
      "status": "unknown",
      "note": "This product-specific field was not established in this entry’s source review."
    },
    "api": {
      "status": "unknown",
      "note": "This product-specific field was not established in this entry’s source review."
    },
    "license": {
      "status": "unknown",
      "note": "This product-specific field was not established in this entry’s source review."
    },
    "commercial_use": {
      "status": "unknown",
      "note": "This product-specific field was not established in this entry’s source review."
    },
    "languages": {
      "status": "unknown",
      "note": "This product-specific field was not established in this entry’s source review."
    },
    "billing": {
      "status": "editorial_inference",
      "note": "Editorial classification of the documented features; not a product-performance test."
    }
  },
  "facts": [
    {
      "id": "languagetool.capability.primary",
      "field": "capability",
      "value": "Check grammar and tone while drafting text",
      "status": "verified",
      "evidence_type": "official_page",
      "checked": "2026-11-03",
      "sources": [
        "https://languagetool.org/"
      ]
    }
  ],
  "description": "Multilingual writing checker with grammar suggestions and AI paraphrasing.",
  "overview": "Multilingual writing checker with grammar suggestions and AI paraphrasing. Check grammar and tone while drafting text; Paraphrase sentences with selectable wording; Use browser and office add-ons in existing writing tools.",
  "features": [
    "Check grammar and tone while drafting text",
    "Paraphrase sentences with selectable wording",
    "Use browser and office add-ons in existing writing tools"
  ],
  "use_cases": [
    "Check grammar and tone while drafting text",
    "Use browser and office add-ons in existing writing tools"
  ],
  "pricing_notes": "Free checking is available; Premium adds deeper checks and larger text limits. The pricing page reported a price-display issue, so current subscription amounts remain unnormalized.",
  "faq": [
    {
      "q": "How does it fit an existing workflow?",
      "a": "Paraphrase sentences with selectable wording; Use browser and office add-ons in existing writing tools."
    },
    {
      "q": "What should I check before choosing a plan?",
      "a": "Free checking is available; Premium adds deeper checks and larger text limits. The pricing page reported a price-display issue, so current subscription amounts remain unnormalized."
    }
  ],
  "i18n": {
    "zh": {
      "description": "提供语法建议和AI改写的多语言写作检查工具。",
      "overview": "提供语法建议和AI改写的多语言写作检查工具。 起草文本时检查语法和语气; 按所需表达改写句子; 在已有写作工具中使用浏览器和办公插件.",
      "features": [
        "起草文本时检查语法和语气",
        "按所需表达改写句子",
        "在已有写作工具中使用浏览器和办公插件"
      ],
      "use_cases": [
        "起草文本时检查语法和语气",
        "在已有写作工具中使用浏览器和办公插件"
      ],
      "pricing_notes": "提供免费检查；Premium增加深入检查及更大文本上限。定价页提示价格显示问题，因此未统一填入当前订阅金额。",
      "faq": [
        {
          "q": "它如何接入已有工作流程？",
          "a": "按所需表达改写句子; 在已有写作工具中使用浏览器和办公插件."
        },
        {
          "q": "选择方案前应确认什么？",
          "a": "提供免费检查；Premium增加深入检查及更大文本上限。定价页提示价格显示问题，因此未统一填入当前订阅金额。"
        }
      ],
      "selection_evidence": {
        "tasks": {
          "note": "依据所记录功能作出的编辑归类，非产品性能实测。"
        },
        "form_factor": {
          "note": "依据所记录功能作出的编辑归类，非产品性能实测。"
        },
        "platforms": {
          "note": "依据所记录功能作出的编辑归类，非产品性能实测。"
        },
        "deployment": {
          "note": "依据所记录功能作出的编辑归类，非产品性能实测。"
        },
        "offline": {
          "note": "本条目的来源核查尚未确认这一产品字段。"
        },
        "regions": {
          "note": "本条目的来源核查尚未确认这一产品字段。"
        },
        "api": {
          "note": "本条目的来源核查尚未确认这一产品字段。"
        },
        "license": {
          "note": "本条目的来源核查尚未确认这一产品字段。"
        },
        "commercial_use": {
          "note": "本条目的来源核查尚未确认这一产品字段。"
        },
        "languages": {
          "note": "本条目的来源核查尚未确认这一产品字段。"
        },
        "billing": {
          "note": "依据所记录功能作出的编辑归类，非产品性能实测。"
        }
      },
      "facts": {
        "languagetool.capability.primary": {
          "value": "起草文本时检查语法和语气"
        }
      }
    },
    "es": {
      "description": "Corrector multilingüe con sugerencias gramaticales y paráfrasis con IA.",
      "overview": "Corrector multilingüe con sugerencias gramaticales y paráfrasis con IA. Revisar gramática y tono al escribir; Parafrasear frases con distintas expresiones; Usar complementos de navegador y ofimática.",
      "features": [
        "Revisar gramática y tono al escribir",
        "Parafrasear frases con distintas expresiones",
        "Usar complementos de navegador y ofimática"
      ],
      "use_cases": [
        "Revisar gramática y tono al escribir",
        "Usar complementos de navegador y ofimática"
      ],
      "pricing_notes": "Hay revisión gratuita; Premium amplía controles y longitud. La página mostró un problema de visualización de precios; los importes actuales no se normalizan.",
      "faq": [
        {
          "q": "¿Cómo encaja en un flujo existente?",
          "a": "Parafrasear frases con distintas expresiones; Usar complementos de navegador y ofimática."
        },
        {
          "q": "¿Qué revisar antes de elegir un plan?",
          "a": "Hay revisión gratuita; Premium amplía controles y longitud. La página mostró un problema de visualización de precios; los importes actuales no se normalizan."
        }
      ],
      "selection_evidence": {
        "tasks": {
          "note": "Clasificación editorial de las funciones documentadas; no es una prueba de rendimiento."
        },
        "form_factor": {
          "note": "Clasificación editorial de las funciones documentadas; no es una prueba de rendimiento."
        },
        "platforms": {
          "note": "Clasificación editorial de las funciones documentadas; no es una prueba de rendimiento."
        },
        "deployment": {
          "note": "Clasificación editorial de las funciones documentadas; no es una prueba de rendimiento."
        },
        "offline": {
          "note": "La revisión de fuentes de esta entrada no estableció este dato del producto."
        },
        "regions": {
          "note": "La revisión de fuentes de esta entrada no estableció este dato del producto."
        },
        "api": {
          "note": "La revisión de fuentes de esta entrada no estableció este dato del producto."
        },
        "license": {
          "note": "La revisión de fuentes de esta entrada no estableció este dato del producto."
        },
        "commercial_use": {
          "note": "La revisión de fuentes de esta entrada no estableció este dato del producto."
        },
        "languages": {
          "note": "La revisión de fuentes de esta entrada no estableció este dato del producto."
        },
        "billing": {
          "note": "Clasificación editorial de las funciones documentadas; no es una prueba de rendimiento."
        }
      },
      "facts": {
        "languagetool.capability.primary": {
          "value": "Revisar gramática y tono al escribir"
        }
      }
    },
    "fr": {
      "description": "Correcteur multilingue avec suggestions grammaticales et reformulation IA.",
      "overview": "Correcteur multilingue avec suggestions grammaticales et reformulation IA. Vérifier grammaire et ton pendant la rédaction; Reformuler les phrases selon l’expression souhaitée; Utiliser les extensions de navigateur et de bureautique.",
      "features": [
        "Vérifier grammaire et ton pendant la rédaction",
        "Reformuler les phrases selon l’expression souhaitée",
        "Utiliser les extensions de navigateur et de bureautique"
      ],
      "use_cases": [
        "Vérifier grammaire et ton pendant la rédaction",
        "Utiliser les extensions de navigateur et de bureautique"
      ],
      "pricing_notes": "La correction gratuite existe ; Premium ajoute des vérifications et des textes plus longs. La page signalait un problème de prix ; montants actuels non normalisés.",
      "faq": [
        {
          "q": "Comment s’intègre-t-il au travail existant ?",
          "a": "Reformuler les phrases selon l’expression souhaitée; Utiliser les extensions de navigateur et de bureautique."
        },
        {
          "q": "Que vérifier avant de choisir un forfait ?",
          "a": "La correction gratuite existe ; Premium ajoute des vérifications et des textes plus longs. La page signalait un problème de prix ; montants actuels non normalisés."
        }
      ],
      "selection_evidence": {
        "tasks": {
          "note": "Classement éditorial des fonctions documentées ; aucun test de performance."
        },
        "form_factor": {
          "note": "Classement éditorial des fonctions documentées ; aucun test de performance."
        },
        "platforms": {
          "note": "Classement éditorial des fonctions documentées ; aucun test de performance."
        },
        "deployment": {
          "note": "Classement éditorial des fonctions documentées ; aucun test de performance."
        },
        "offline": {
          "note": "L’examen des sources de cette fiche n’a pas établi ce point du produit."
        },
        "regions": {
          "note": "L’examen des sources de cette fiche n’a pas établi ce point du produit."
        },
        "api": {
          "note": "L’examen des sources de cette fiche n’a pas établi ce point du produit."
        },
        "license": {
          "note": "L’examen des sources de cette fiche n’a pas établi ce point du produit."
        },
        "commercial_use": {
          "note": "L’examen des sources de cette fiche n’a pas établi ce point du produit."
        },
        "languages": {
          "note": "L’examen des sources de cette fiche n’a pas établi ce point du produit."
        },
        "billing": {
          "note": "Classement éditorial des fonctions documentées ; aucun test de performance."
        }
      },
      "facts": {
        "languagetool.capability.primary": {
          "value": "Vérifier grammaire et ton pendant la rédaction"
        }
      }
    },
    "ja": {
      "description": "文法提案とAI言い換えを備える多言語文章チェック。",
      "overview": "文法提案とAI言い換えを備える多言語文章チェック。 執筆時に文法とトーンを確認; 表現を選んで文を言い換え; 既存ツールでブラウザ・Officeアドオンを利用.",
      "features": [
        "執筆時に文法とトーンを確認",
        "表現を選んで文を言い換え",
        "既存ツールでブラウザ・Officeアドオンを利用"
      ],
      "use_cases": [
        "執筆時に文法とトーンを確認",
        "既存ツールでブラウザ・Officeアドオンを利用"
      ],
      "pricing_notes": "無料チェックがあり、Premiumは詳細確認と文字数上限を追加。料金ページが表示エラーを示したため現行購読額は換算していません。",
      "faq": [
        {
          "q": "既存の作業にどう組み込めますか？",
          "a": "表現を選んで文を言い換え; 既存ツールでブラウザ・Officeアドオンを利用."
        },
        {
          "q": "プラン選択前に何を確認すべきですか？",
          "a": "無料チェックがあり、Premiumは詳細確認と文字数上限を追加。料金ページが表示エラーを示したため現行購読額は換算していません。"
        }
      ],
      "selection_evidence": {
        "tasks": {
          "note": "記録された機能に基づく編集上の分類であり、性能の実測ではありません。"
        },
        "form_factor": {
          "note": "記録された機能に基づく編集上の分類であり、性能の実測ではありません。"
        },
        "platforms": {
          "note": "記録された機能に基づく編集上の分類であり、性能の実測ではありません。"
        },
        "deployment": {
          "note": "記録された機能に基づく編集上の分類であり、性能の実測ではありません。"
        },
        "offline": {
          "note": "この項目の資料確認では、この製品固有の情報は未確認です。"
        },
        "regions": {
          "note": "この項目の資料確認では、この製品固有の情報は未確認です。"
        },
        "api": {
          "note": "この項目の資料確認では、この製品固有の情報は未確認です。"
        },
        "license": {
          "note": "この項目の資料確認では、この製品固有の情報は未確認です。"
        },
        "commercial_use": {
          "note": "この項目の資料確認では、この製品固有の情報は未確認です。"
        },
        "languages": {
          "note": "この項目の資料確認では、この製品固有の情報は未確認です。"
        },
        "billing": {
          "note": "記録された機能に基づく編集上の分類であり、性能の実測ではありません。"
        }
      },
      "facts": {
        "languagetool.capability.primary": {
          "value": "執筆時に文法とトーンを確認"
        }
      }
    },
    "de": {
      "description": "Mehrsprachige Schreibprüfung mit Grammatikvorschlägen und KI-Paraphrasen.",
      "overview": "Mehrsprachige Schreibprüfung mit Grammatikvorschlägen und KI-Paraphrasen. Grammatik und Ton beim Schreiben prüfen; Sätze mit verschiedenen Formulierungen umschreiben; Browser- und Office-Erweiterungen in Schreibwerkzeugen nutzen.",
      "features": [
        "Grammatik und Ton beim Schreiben prüfen",
        "Sätze mit verschiedenen Formulierungen umschreiben",
        "Browser- und Office-Erweiterungen in Schreibwerkzeugen nutzen"
      ],
      "use_cases": [
        "Grammatik und Ton beim Schreiben prüfen",
        "Browser- und Office-Erweiterungen in Schreibwerkzeugen nutzen"
      ],
      "pricing_notes": "Kostenlose Prüfung ist verfügbar; Premium erweitert Prüfungen und Textlänge. Die Preisseite meldete einen Anzeigefehler; aktuelle Beträge bleiben unvereinheitlicht.",
      "faq": [
        {
          "q": "Wie passt es in bestehende Abläufe?",
          "a": "Sätze mit verschiedenen Formulierungen umschreiben; Browser- und Office-Erweiterungen in Schreibwerkzeugen nutzen."
        },
        {
          "q": "Was ist vor der Tarifwahl zu prüfen?",
          "a": "Kostenlose Prüfung ist verfügbar; Premium erweitert Prüfungen und Textlänge. Die Preisseite meldete einen Anzeigefehler; aktuelle Beträge bleiben unvereinheitlicht."
        }
      ],
      "selection_evidence": {
        "tasks": {
          "note": "Redaktionelle Einordnung dokumentierter Funktionen; kein Leistungstest."
        },
        "form_factor": {
          "note": "Redaktionelle Einordnung dokumentierter Funktionen; kein Leistungstest."
        },
        "platforms": {
          "note": "Redaktionelle Einordnung dokumentierter Funktionen; kein Leistungstest."
        },
        "deployment": {
          "note": "Redaktionelle Einordnung dokumentierter Funktionen; kein Leistungstest."
        },
        "offline": {
          "note": "Die Quellenprüfung dieses Eintrags hat dieses Produktfeld nicht belegt."
        },
        "regions": {
          "note": "Die Quellenprüfung dieses Eintrags hat dieses Produktfeld nicht belegt."
        },
        "api": {
          "note": "Die Quellenprüfung dieses Eintrags hat dieses Produktfeld nicht belegt."
        },
        "license": {
          "note": "Die Quellenprüfung dieses Eintrags hat dieses Produktfeld nicht belegt."
        },
        "commercial_use": {
          "note": "Die Quellenprüfung dieses Eintrags hat dieses Produktfeld nicht belegt."
        },
        "languages": {
          "note": "Die Quellenprüfung dieses Eintrags hat dieses Produktfeld nicht belegt."
        },
        "billing": {
          "note": "Redaktionelle Einordnung dokumentierter Funktionen; kein Leistungstest."
        }
      },
      "facts": {
        "languagetool.capability.primary": {
          "value": "Grammatik und Ton beim Schreiben prüfen"
        }
      }
    },
    "pt": {
      "description": "Corretor multilíngue com sugestões gramaticais e paráfrase por IA.",
      "overview": "Corretor multilíngue com sugestões gramaticais e paráfrase por IA. Verificar gramática e tom durante a escrita; Parafrasear frases com outras formulações; Usar complementos de navegador e escritório.",
      "features": [
        "Verificar gramática e tom durante a escrita",
        "Parafrasear frases com outras formulações",
        "Usar complementos de navegador e escritório"
      ],
      "use_cases": [
        "Verificar gramática e tom durante a escrita",
        "Usar complementos de navegador e escritório"
      ],
      "pricing_notes": "Há revisão gratuita; Premium amplia verificações e tamanho do texto. A página mostrou erro de preços; valores atuais não foram normalizados.",
      "faq": [
        {
          "q": "Como se integra ao trabalho existente?",
          "a": "Parafrasear frases com outras formulações; Usar complementos de navegador e escritório."
        },
        {
          "q": "O que verificar antes de escolher um plano?",
          "a": "Há revisão gratuita; Premium amplia verificações e tamanho do texto. A página mostrou erro de preços; valores atuais não foram normalizados."
        }
      ],
      "selection_evidence": {
        "tasks": {
          "note": "Classificação editorial dos recursos documentados; não é um teste de desempenho."
        },
        "form_factor": {
          "note": "Classificação editorial dos recursos documentados; não é um teste de desempenho."
        },
        "platforms": {
          "note": "Classificação editorial dos recursos documentados; não é um teste de desempenho."
        },
        "deployment": {
          "note": "Classificação editorial dos recursos documentados; não é um teste de desempenho."
        },
        "offline": {
          "note": "A revisão de fontes desta entrada não estabeleceu este dado do produto."
        },
        "regions": {
          "note": "A revisão de fontes desta entrada não estabeleceu este dado do produto."
        },
        "api": {
          "note": "A revisão de fontes desta entrada não estabeleceu este dado do produto."
        },
        "license": {
          "note": "A revisão de fontes desta entrada não estabeleceu este dado do produto."
        },
        "commercial_use": {
          "note": "A revisão de fontes desta entrada não estabeleceu este dado do produto."
        },
        "languages": {
          "note": "A revisão de fontes desta entrada não estabeleceu este dado do produto."
        },
        "billing": {
          "note": "Classificação editorial dos recursos documentados; não é um teste de desempenho."
        }
      },
      "facts": {
        "languagetool.capability.primary": {
          "value": "Verificar gramática e tom durante a escrita"
        }
      }
    },
    "ko": {
      "description": "문법 제안과 AI 문장 변환을 제공하는 다국어 작성 검사.",
      "overview": "문법 제안과 AI 문장 변환을 제공하는 다국어 작성 검사. 작성 중 문법·어조 확인; 원하는 표현으로 문장 바꾸기; 기존 작성 도구에서 브라우저·오피스 확장 사용.",
      "features": [
        "작성 중 문법·어조 확인",
        "원하는 표현으로 문장 바꾸기",
        "기존 작성 도구에서 브라우저·오피스 확장 사용"
      ],
      "use_cases": [
        "작성 중 문법·어조 확인",
        "기존 작성 도구에서 브라우저·오피스 확장 사용"
      ],
      "pricing_notes": "무료 검사가 있으며 Premium은 심화 검사·문자 한도를 늘립니다. 가격 페이지에 표시 오류가 있어 현재 구독료를 환산하지 않았습니다.",
      "faq": [
        {
          "q": "기존 업무에 어떻게 연결하나요?",
          "a": "원하는 표현으로 문장 바꾸기; 기존 작성 도구에서 브라우저·오피스 확장 사용."
        },
        {
          "q": "요금제 선택 전 무엇을 확인하나요?",
          "a": "무료 검사가 있으며 Premium은 심화 검사·문자 한도를 늘립니다. 가격 페이지에 표시 오류가 있어 현재 구독료를 환산하지 않았습니다."
        }
      ],
      "selection_evidence": {
        "tasks": {
          "note": "문서화된 기능에 따른 편집상 분류이며 성능 실측이 아닙니다."
        },
        "form_factor": {
          "note": "문서화된 기능에 따른 편집상 분류이며 성능 실측이 아닙니다."
        },
        "platforms": {
          "note": "문서화된 기능에 따른 편집상 분류이며 성능 실측이 아닙니다."
        },
        "deployment": {
          "note": "문서화된 기능에 따른 편집상 분류이며 성능 실측이 아닙니다."
        },
        "offline": {
          "note": "이 항목의 출처 검토에서 해당 제품 정보를 확인하지 못했습니다."
        },
        "regions": {
          "note": "이 항목의 출처 검토에서 해당 제품 정보를 확인하지 못했습니다."
        },
        "api": {
          "note": "이 항목의 출처 검토에서 해당 제품 정보를 확인하지 못했습니다."
        },
        "license": {
          "note": "이 항목의 출처 검토에서 해당 제품 정보를 확인하지 못했습니다."
        },
        "commercial_use": {
          "note": "이 항목의 출처 검토에서 해당 제품 정보를 확인하지 못했습니다."
        },
        "languages": {
          "note": "이 항목의 출처 검토에서 해당 제품 정보를 확인하지 못했습니다."
        },
        "billing": {
          "note": "문서화된 기능에 따른 편집상 분류이며 성능 실측이 아닙니다."
        }
      },
      "facts": {
        "languagetool.capability.primary": {
          "value": "작성 중 문법·어조 확인"
        }
      }
    }
  },
  "verification": {
    "last_checked": "2026-11-03",
    "batch": "catalog-500-20261103",
    "source_review": "Official product pages read; no product-performance test.",
    "reviewed_sources": [
      "https://languagetool.org/",
      "https://languagetool.org/premium"
    ],
    "egress_region": "unknown",
    "owner": "workplace",
    "gap_note": "Only documented product scope and supplied claims were reviewed. Fields left unknown were not established for this entry; no launch date, geographic guarantee or licence is inferred."
  },
  "url": "https://globalaiproductindex.com/products/languagetool/"
}