LanguageTool – AI Tool for Writing

AI-powered grammar checker supporting over 30 languages.

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StudentsWritersProfessionalsEducators

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Pricing:From $4.32/mo(Free tier available)

₹361₹426 incl. 18% GST

TL;DR — LanguageTool

AI-powered grammar checker supporting over 30 languages. Pricing starts from ₹361/mo with a free tier available. Key strengths include grammar checking, punctuation correction, spelling error detection. Security: Published posture.

What is LanguageTool?

LanguageTool is an open-source spelling and grammar checking tool that helps users identify grammar, punctuation, and spelling errors in their writing. It supports over 30 languages, making it a versatile tool for enhancing writing quality. Users can access LanguageTool for free, and it is particularly useful for anyone looking to improve their written communication.

Who Should Use LanguageTool?

Checking grammar in documents
Correcting punctuation errors
Identifying spelling mistakes
Enhancing writing quality
Supporting multilingual writing

Key Features

Grammar checking
Punctuation correction
Spelling error detection
Supports multiple languages
Open-source availability

Security Assessment

Security: Published posture

Published posture scored 12/20 or above. We check HTTPS, a reachable privacy policy, and stated compliance commitments. We do not perform security testing.

Last assessed: 17 August 2026

How this score was built

Each scored criterion links to the published page it was derived from. Unscored criteria are marked, not guessed. This listing has not been hands-on tested.

Security & Data Privacy
The privacy policy indicates GDPR compliance and the homepage uses HTTPS.
Source: languagetool.org
8/10
Functionality & Features
The homepage describes various features including grammar checking and paraphrasing.
Source: languagetool.org
8/10
Ease of Use
Requires hands-on use of the product.
Not assessed
Pricing & Value
No citable published evidence in this pass.
Not assessed
Reliability & Performance
Requires hands-on use of the product.
Not assessed
Integration Capabilities
No citable published evidence in this pass.
Not assessed
Customer Support
No citable published evidence in this pass.
Not assessed
Company Stability
No citable published evidence in this pass.
Not assessed
Update Frequency
No citable published evidence in this pass.
Not assessed
Startup-Friendliness
The homepage mentions a premium offering that could be beneficial for startups.
Source: languagetool.org
6/10

Frequently Asked Questions

What is LanguageTool and what does it do?

AI-powered grammar checker supporting over 30 languages. Key capabilities: Grammar checking; Punctuation correction; Spelling error detection. Commonly used for Checking grammar in documents, Correcting punctuation errors, Identifying spelling mistakes.

What does LanguageTool cost in India?

LanguageTool starts at ₹361/month (plus 18% GST). A free tier is available to get started.

Is LanguageTool safe for startups?

LanguageTool has a published security posture scoring 12/20 or above (HTTPS, a reachable privacy policy, and/or stated compliance commitments). We do not perform security testing.

How is LanguageTool rated on One9Founders?

LanguageTool has not yet been rated on our 10-point evaluation framework. See How We Rate for the 10-criterion framework and status definitions.