LanguageTool is a powerful AI-driven writing assistant designed to help users craft error-free, polished, and professional content in over 30 languages. Known for its advanced grammar, punctuation, and style corrections, it is trusted by writers, students, professionals, and multilingual teams worldwide.
LanguageTool acts as a smart editor that goes beyond basic spellcheck. It detects grammatical errors, stylistic inconsistencies, and tone issues — helping users refine their writing for clarity, correctness, and impact. Whether you're writing emails, academic papers, blog posts, or business reports, LanguageTool improves both the technical and stylistic quality of your work.
Advanced Grammar and Style Correction
Identifies grammar, spelling, and punctuation mistakes, as well as stylistic improvements related to tone, redundancy, passive voice, and formal language.
Multilingual Support
Covers 30+ languages including English, German, French, Spanish, Portuguese, and Dutch — ideal for international users and global content teams.
Personal Dictionary and Style Rules
Users can add custom terms and configure company- or team-specific style guidelines to ensure writing stays consistent across documents.
Tone and Formality Suggestions
Helps tailor writing for specific audiences with suggestions to make content sound more formal, concise, or polite depending on context.
Integrations and Extensions
Available as a browser extension (Chrome, Firefox, Edge), and integrates with Google Docs, Microsoft Word, Gmail, and more. Also offers desktop apps and add-ons for LibreOffice and OpenOffice.
LanguageTool’s free version includes basic checks but limits advanced suggestions and character count. While accurate for most standard corrections, it may not detect subtle contextual errors or industry-specific language unless customized.
LanguageTool offers a free plan with essential grammar and spellcheck functionality. Premium plans start at $9.95/month (billed annually) and include advanced writing suggestions, tone improvements, and extended document support. Team and enterprise plans provide shared accounts, analytics, and style enforcement.
LanguageTool stands out as a versatile, multilingual alternative to more English-focused editing tools. With intelligent grammar correction, deep language support, and flexible integrations, it's ideal for users who value accuracy, tone control, and language diversity in their written communication.
Compare LanguageTool to other AI writing and grammar assistants on the TrendingAI comparison page.
