Data as of Aug 16, 2026 · Based on 3,131,739 AI responses across 10,525 prompts · See how Parse measures this
LanguageTool is an AI-based writing assistant that checks grammar, spelling, and style across many languages and provides improvements, including a paraphrasing tool. It offers browser add-ons and office integrations (Chrome, Edge, Firefox, Safari) and an editor with features like a personal dictionary, statistics, and a Picky Mode for advanced suggestions. It provides Premium and Business plans, an API, and GDPR-compliant solutions for teams, trusted by millions of users and thousands of organizations.
Tone of voice
77% of how AI describes LanguageTool reads positive.
Words AI uses
AI reaches for excellent · multilingual · strong when it describes LanguageTool.
Rivals
Grammarly is the brand AI weighs against LanguageTool most.
Sources
languagetool.org shapes more of what AI says about LanguageTool than any other source, at 20% of its citations.
en.wikipedia.org · guideflow.com · youtube.com · brighterly.com
The market map
Grammar and Writing Checker Tools →Where AI ranks LanguageTool
Excerpts where LanguageTool appeared in the AI's answer

LanguageTool (Best Value and Multilingual Support) : For editors working across multiple languages or handling high-volume web content on a budget, LanguageTool is an exceptional open-source option.

LanguageTool: A strong alternative to Grammarly that offers in-depth style checks and supports multiple languages, often favored for its data privacy and browser integration.
Excerpts where LanguageTool appeared in the AI's answer

LanguageTool: Best budget-friendly and multilingual long-document checker.

LanguageTool provides: Grammar and spelling checks, Style suggestions, Multilingual support, Good privacy options