What LanguageTool is
LanguageTool checks grammar, spelling, and style as you write in the browser, with paraphrasing now part of the listing's pitch. Where Grammarly leads with English-first feature depth, LanguageTool's calling card is language breadth on top of an open-source core.
Feature coverage
- Grammar and spelling checks in browser text fields
- Style and punctuation suggestions
- Paraphrasing tools in the current listing
- Multilingual checking across the publisher's supported languages
- Personal dictionary
What stands out
- Strong 4.7 rating across a 12.6K-rating sample
- Free tier covers everyday checking
- Multilingual scope beyond English-first rivals
Tradeoffs to know
- Free tier enforces length and feature limits
- Store lists PII, communications, location, activity, and website content
- Deeper style feedback requires Premium
Is LanguageTool safe to use?
LanguageTool is an established, actively maintained writing assistant, but it needs access to the text fields where it checks your work and its listing discloses five data categories. It is reasonable for everyday writing; confidential, regulated, or unpublished material deserves per-site limits and a policy review first.
Page access Broad
Requests page-content access across sites. Broad access is not itself a red flag — the question is whether the job justifies the reach, and whether the publisher's record earns it.
Inline checking needs access to the fields where you write. Chrome's per-site controls can restrict it to the sites where you actually want feedback.
Store-disclosed data
- Personally identifiable information
- Personal communications
- Location
- User activity
- Website content
The Chrome Web Store lists personally identifiable information, personal communications, location, user activity, and website content among handled data categories. Review the privacy policy before using it in confidential documents.
Can LanguageTool read what I type?
Inline grammar checking requires access to the writing fields where the extension is enabled. Chrome's per-site controls can keep it off account, medical, legal, or other sensitive pages where you do not need feedback.
What data does LanguageTool's listing disclose?
The listing names personally identifiable information, personal communications, location, user activity, and website content. Those are publisher disclosures, so check the current privacy policy before using private drafts.
How we judge this: our extension safety guide · how we rate
Pricing
Free tier; paid Premium plans. Pricing and plan limits change more often than store metadata, so use the linked developer page as the final check before subscribing.
Alternatives
Head-to-head comparisons
Sources
We used the official Chrome Web Store listing and first-party developer material. Public metrics can change after the fact-check date.
- Chrome Web Store listing
Rating, users, version, update date, and data categories.
- LanguageTool website
Plans, supported languages, and product documentation.
- Extension Reviewer methodology
How we verify public claims and weigh tradeoffs.