LanguageTool

LanguageTool is a free AI-powered grammar and spell checker that works like a smart editor for your writing. It spots mistakes in spelling, grammar, punctuation, and style across over 30 languages, helping you write clearer and more professional text no matter where you type—emails, docs, or social posts. Trusted by over 4 million users and big names like BMW and the European Union, it makes perfect writing simple for anyone, with premium options for even deeper fixes.​

Key Features

• Real-time checks for spelling, grammar, punctuation, and casing as you type, with color-coded underlines (red for errors, blue for style tips).
• Paraphrasing tool powered by AI to rephrase sentences for better flow, formality, or simplicity.
• Statistics dashboard tracking your productivity, errors fixed, and language use to watch your skills grow.
• Privacy-focused browser add-ons that detect 30+ languages automatically without storing your text.​

Use Cases

• Writing emails, blog posts, or tweets without embarrassing typos or awkward phrasing.
• Proofreading school essays, theses, or work reports for polished, error-free results.
• Learning a new language by getting instant feedback on grammar and style in real-time.