Arktan logo

LanguageTool is a multilingual spelling, style, and grammar checker and paraphraser that helps correct or paraphrase texts in more than 30 languages.

It can be used as a browser add-on, in favorite writing apps, and even in programs like Microsoft Word, LibreOffice, and OpenOffice.


  • Grammar checking: LanguageTool detects and underlines spelling, grammar, and punctuation mistakes, helping users improve their writing.
  • Paraphrasing: LanguageTool's AI-powered paraphraser helps users find the right words by suggesting alternative phrasings and improving fluency.
  • Multilingual support: LanguageTool supports more than 30 languages, including English, Spanish, German, French, Portuguese, and Dutch.
  • Browser add-on: LanguageTool can be added to web browsers like Chrome, Firefox, Edge, and Safari, providing real-time suggestions while typing.
  • Integration with favorite writing apps: LanguageTool integrates with popular apps like Google Docs, Microsoft Word, LibreOffice, and OpenOffice, offering grammar and style suggestions.
  • Statistics and productivity tracking: Users can track their productivity, view their writing statistics, and see how their writing skills have improved over time.
  • Distraction-free writing experience: LanguageTool provides a distraction-free environment for writing, allowing users to focus on their content.
  • Personal dictionary: Users can create and manage their personal dictionaries to add custom words or phrases.
  • Dark and light appearance options: LanguageTool offers a choice between dark and light themes for a customized writing experience.

Use Cases

  • Proofreading and editing written content: LanguageTool helps individuals proofread and edit their written content, ensuring it is free from grammar and style mistakes.
  • Improving second language writing: LanguageTool is especially useful for non-native speakers who want to improve their writing skills in a foreign language.
  • Academic writing: LanguageTool can assist students and researchers in proofreading and editing their academic papers and theses.
  • Professional writing: LanguageTool is a valuable tool for professional writers, helping them enhance their writing style and correctness.
  • Improving writing in business communication: LanguageTool can be used to improve email writing, business reports, and other professional communication.
  • Language learning: LanguageTool can be used as an educational tool to teach grammar and improve writing skills in different languages.

Suited For

  • Students and researchers
  • Non-native speakers
  • Professional writers
  • Business professionals
  • Language learners