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Grammarly vs LanguageTool: Which Prioritizes Your Data Privacy?

Explore how US-based Grammarly and Germany's LanguageTool handle your data with an emphasis on privacy and security. Discover which tool aligns with your privacy needs today.

Last updated: February 18, 2026•Reviewed by Built in EU Team

Should You Switch to LanguageTool?

What You Gain

Better privacy, multilingual support, open-source customization

Privacy advantage
Trade-offs

Potential loss of advanced AI features and plagiarism detection

Grammarly has more features
Bottom Line

Switch if privacy and multilingual support are priorities; stay for advanced AI

At a Glance

Data Location
🇺🇸US

US data laws

🇩🇪DE

GDPR protected

Pricing

Grammarly

Contact

LanguageTool

Contact

Migration
Medium difficulty~1-2 hours

Privacy & Compliance Comparison

Critical data sovereignty factors at a glance

CriteriaGrammarlyLanguageTool
Server Location
US (AWS)EU
GDPR Compliance
Partial (SCCs)Full
Open Source
E2E Encryption
UnknownUnknown
Data Portability
LimitedFull export

CLOUD Act Notice

Grammarly is a US company and must comply with CLOUD Act data requests, even for data stored in EU data centers. LanguageTool is not subject to US jurisdiction.

Switching from
Grammarly logo

Grammarly

🇺🇸

Grammarly Inc.

VS
Switching to
LanguageTool logo

LanguageTool

🇩🇪

LanguageTool

US Data Storage

Data subject to US CLOUD Act and may be accessed by US authorities

EU Data Protection

Data protected under GDPR with EU-only data residency

Certifications & Compliance

No certifications listed

EU-Based
Open Source
EU-hosted
GDPR Compliant

Reasons to Switch

  • ✓Supports 30+ languages for grammar checks
  • ✓Open-source allows custom feature development
  • ✓GDPR compliance ensures EU data protection
  • ✓Integrates with multiple platforms easily

Things to Consider

  • !Lacks plagiarism detection feature
  • !Migration may require user adaptation
  • !End-to-end encryption status is unclear
Migration difficulty:
Medium
~1-2 hours

Migration Overview

Full guide
Difficulty
Medium
Time Estimate
~1-2 hours

Depends on data size and complexity

Quick Steps

1

Create LanguageTool account and configure settings

2

Export and prepare data from Grammarly

3

Import data, test integrations, and migrate users

Other alternatives to Grammarly

Ready to make the switch?

Start using LanguageTool today and take control of your data privacy.