Is Languagetool Safe?

Languagetool — Nerq Trust Score 29.8/100 (F grade). Based on analysis of 2 trust dimensions, it is has significant safety risks. Last updated: 2026-03-31.

Languagetool has significant trust concerns. Languagetool is a Chrome extension with a Nerq Trust Score of 29.8/100 (F), based on 3 independent data dimensions. It is below the recommended threshold of 70. Security: 65/100. Popularity: 5/100. Data sourced from Chrome Web Store metadata, permissions analysis, developer verification, and update history. Last updated: 2026-03-31. Machine-readable data (JSON).

Is Languagetool safe?

NO — USE WITH CAUTION — Languagetool has a Nerq Trust Score of 29.8/100 (F). It has below-average trust signals with significant gaps in security, maintenance, or documentation. Not recommended for production use without thorough manual review and additional security measures.

Security Analysis → {name} Privacy Report →

What is Languagetool's trust score?

Languagetool has a Nerq Trust Score of 29.8/100, earning a F grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.

Security
65
Popularity
5

What are the key security findings for Languagetool?

Languagetool's strongest signal is security at 65/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.

Security score: 65/100 (moderate)
Popularity: 5/100 — Chrome Web Store

What is Languagetool and who maintains it?

AuthorUnknown
Categorychrome
SourceN/A

Languagetool Across Platforms

Same developer/company in other registries:

Grammar and Spell Checker - LanguageTool
47/100 · firefox
languagetool
39/100 · homebrew
languagetool
35/100 · crates

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Safety Guide: Languagetool

What is Languagetool?

Languagetool is a Chrome extension — Grammar, style, and spell checker. Supports 30+ languages. Open source engine..

How to Verify Safety

Review permissions carefully. 'Read all data on all websites' is high risk.

You can also check the trust score via API: GET /v1/preflight?target=LanguageTool

Key Safety Concerns for Chrome extensions

When evaluating any Chrome extension, watch for: excessive permissions, data harvesting, permission creep.

Trust Assessment

Languagetool has a Nerq Trust Score of 30/100 (F) and has not yet reached Nerq trust threshold (70+). This score is based on automated analysis of security, maintenance, community, and quality signals.

Key Takeaways

Detailed Score Analysis

DimensionScore
Security65/100
Privacy90/100
Reliability50/100
Transparency60/100
Maintenance60/100

Based on 5 dimensions. Data from Chrome Web Store metadata, permissions analysis, developer verification, and update history.

What data does Languagetool collect?

Languagetool has a privacy score of 90/100. Review the documentation and privacy policy for data handling details.

Full analysis: Languagetool Privacy Report · Privacy review

Is Languagetool secure?

Security score: 65/100. Review security practices and consider alternatives with higher security scores for sensitive use cases.

Nerq monitors this entity against NVD, OSV.dev, and registry-specific vulnerability databases for ongoing security assessment.

Full analysis: Languagetool Security Report

Languagetool Across Platforms

Same developer/company in other registries:

Grammar and Spell Checker - LanguageTool (firefox, 47/100)languagetool (homebrew, 39/100)languagetool (crates, 35/100)

How we calculated this score

Languagetool's trust score of 29.8/100 (F) is computed from Chrome Web Store metadata, permissions analysis, developer verification, and update history. The score reflects 5 independent dimensions: security (65/100), privacy (90/100), reliability (50/100), transparency (60/100), maintenance (60/100). Each dimension is weighted equally to produce the composite trust score.

Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.

This page was last reviewed on March 31, 2026. Data version: 1.0.

Full methodology documentation · Machine-readable data (JSON API)

Frequently Asked Questions

Is Languagetool safe?
Significant trust concerns. LanguageTool has a Nerq Trust Score of 29.8/100 (F). Strongest signal: security (65/100). Score based on security (65/100), popularity (5/100).
What is Languagetool's trust score?
LanguageTool: 29.8/100 (F). Score based on: security (65/100), popularity (5/100). Scores update as new data becomes available. API: GET nerq.ai/v1/preflight?target=LanguageTool
What are safer alternatives to Languagetool?
In the chrome category, more Chrome extensions are being analyzed — check back soon. LanguageTool scores 29.8/100.
What permissions does Languagetool need?
Review Languagetool's requested permissions carefully. Extensions requesting 'Read and change all data on all websites' carry the highest risk. Current trust score: 29.8/100.
Is Languagetool's publisher verified?
Languagetool has a trust score of 29.8/100 (F). Below Nerq Verified threshold — conduct additional review.
API: /v1/preflight Trust Badge API Docs

Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.

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