Which is safer, Grammarly or Languagetool?

Compare the safety scores, permissions, and developer reputation of Grammarly and Languagetool on our detailed comparison page to see which extension is safer for your browser.

What are the main differences between Grammarly and Languagetool?

Grammarly and Languagetool differ in features, permissions required, privacy practices, and user ratings. Our side-by-side comparison breaks down each category to help you choose.

Is Grammarly or Languagetool better for privacy?

Review the data access permissions and privacy practices of both Grammarly and Languagetool in our comparison to determine which extension better protects your browsing data.

Grammarly vs LanguageTool - Comparison 2026

Compare Grammarly and LanguageTool writing assistants. See which grammar checker offers better accuracy, language support, privacy, and value in 2026.

Grammarly vs Languagetool: Side-by-Side Comparison

Choosing between Grammarly and Languagetool? This comparison breaks down the key differences in features, permissions, privacy, and safety scores to help you pick the right Chrome extension. Both extensions serve a similar purpose, but they differ in approach, data access, and long-term reliability.

Features & Functionality: Compare the core functionality of Grammarly and Languagetool to see which better fits your workflow, including unique capabilities each one offers.
Permissions & Privacy: Review what data each extension can access and how permissions compare between Grammarly and Languagetool. Fewer permissions generally means less risk to your browsing data.
Safety Scores: See how Grammarly and Languagetool rank on our automated safety analysis including developer reputation, update cadence, and user-reported issues.
Performance Impact: Evaluate how Grammarly and Languagetool affect browser speed and memory usage. Lighter extensions mean a faster browsing experience.
User Ratings & Reviews: Compare community feedback for Grammarly and Languagetool based on Chrome Web Store ratings, review sentiment, and reported bugs.

How We Compare Extensions

Every comparison on Zovo is data-driven. We pull permission manifests, analyze network behavior, aggregate user reviews, and run automated safety scoring so you get an objective, reproducible evaluation rather than subjective opinions.

Explore Each Extension

Is Grammarly safe? — Full safety analysis
Is Languagetool safe? — Full safety analysis
Grammarly alternatives
Languagetool alternatives

See Full Category Rankings

Want to see all the top-rated options? Check our Best Grammar Checkers Chrome Extensions list for the complete rankings.

✅ Expert Verdict: Grammarly Wins

Grammarly leads for English; LanguageTool wins for multilingual.

Comparison Categories

English GrammarMultilingual SupportPrivacyWriting FeaturesValue for Money

Grammarly vs Languagetool: Frequently Asked Questions

Which is more accurate for English grammar?

Grammarly is more accurate for English with deeper contextual analysis and nuanced suggestions. LanguageTool is strong but occasionally misses English-specific nuances.

Which supports more languages?

LanguageTool supports 30+ languages with deep grammar rules. Grammarly focuses primarily on English with limited multilingual support.

Is there a privacy-friendly alternative?

BeLikeNative offers AI rewriting and grammar checking in 80+ languages with zero data collection, making it a strong privacy-focused option.