Grammarly vs LanguageTool

At a glance

Grammarly - strengths & limits

Strengths

• Works almost everywhere you type, not just in one editor
• Suggestions come with reasons, so writing habits actually improve
• Very low friction - no new workflow to learn

Watch out for

• Suggestions occasionally flatten a distinctive authorial voice
• The best features require the paid subscription
• Non-native grammar rules are weaker than its English coverage

LanguageTool - strengths & limits

Strengths

• Open source and self-hostable, which very few rivals offer
• Multilingual coverage makes it useful to bilingual writers
• Extensions plug into the editors and mail clients people already use

Watch out for

• Style suggestions are blunter than advice from a human editor
• The free web tier limits how much text you can check at once
• Some languages rely on noticeably fewer rules than English or German

Which should you choose?

If your priority is business and academic writing, non-native English speakers, email and documentation polish, Grammarly is the stronger pick. If instead you care more about multilingual proofreading, academic writing, business email and self-hosted deployments, go with LanguageTool. For most people, trying both on a free tier is the fastest way to decide - they serve the same AI Writing & Copywriting space but differ in workflow and output style.

FAQ