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LanguageTool
Writing & ContentFreemiumGrammar Checker
AI-based grammar and spelling checker across multiple languages.
About
LanguageTool is an AI-powered grammar checker that detects grammatical errors, spelling mistakes, and style issues across 20+ languages. It offers both a free tier and premium features including advanced punctuation checking, AI-powered paraphrasing, and style guides. Used by 2000+ organizations including BMW, Deutsche Presse-Agentur, and JetBrains, it helps writers produce professional, error-free content.
Problem it solves
Helps writers identify and correct grammatical, spelling, and style errors to produce professional writing.
Best for
Content creators, students, professionals, teams, and anyone writing in multiple languages.
Key features
Grammar and spelling error detection across 20+ languages
AI-powered sentence paraphrasing
Advanced punctuation and style checking with Picky Mode
Browser add-ons for Chrome, Firefox, Edge, Safari
Personal dictionary and custom style guides
Support for up to 150,000 characters per text field
Tags
grammar-checkerspell-checkerai-writingmultilingualparaphrasingstyle-guide
Alternatives
GrammarlyMicrosoft WordProWritingAidHemingway EditorGinger