LanguageTool checks multilingual spelling, grammar, punctuation, wording, and style in browsers, documents, email, and supported desktop applications. Suggestions require context-aware review, and the tool does not verify facts, citations, originality, or the strength of an argument.
Start with a small test and only authorized inputs. Configure language, privacy, quality, export, and billing settings; compare results with original material or trusted references; correct errors; and retain human approval before publishing, submitting, contacting people, or automating consequential work.
A Free plan provides core checks with limits. Premium starts from an effective $4.99 per month depending on billing term and promotion; team pricing, languages, text length, and advanced suggestions vary.
AI output can be inaccurate, biased, incomplete, stale, or misleading, while cloud services may process personal, confidential, copyrighted, or regulated information. Check consent, retention, model-training, licenses, platform rules, renewal terms, and accessibility, and use qualified review for legal, academic, financial, medical, employment, or other high-impact decisions.
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