What is LanguageTool?
LanguageTool is an AI‑based grammar, spelling, and style checker that supports more than 30 languages and dialects, including English, German, French, Spanish, Dutch, and Portuguese. It offers browser extensions for Chrome, Edge, Firefox, Safari, and Opera, enabling real‑time corrections while typing in e‑mail, blog posts, or social media.
A dedicated desktop application and a Microsoft Word add‑in provide offline editing for Word, Google Docs, LibreOffice, and other office suites. LanguageTool’s “Picky Mode” adds advanced punctuation, tone, and synonym suggestions for users who need detailed style refinement.
The tool also includes a paraphrasing function that rewrites sentences in a formal or concise style, useful for academic writing, business communication, and creative projects. Developers can integrate the service via an API, facilitating automated grammar checks in custom applications.
LanguageTool details
- Company
- Learneo, Inc.
- Jurisdiction
- United States
LanguageTool tech specs
- Integrations
- Slack
LanguageTool pricing
Free- Auto-renewal
- Yes
Verify on the official pricing page.
Get started freeLanguageTool's key features
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Grammar and style checking (30+ languages)
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Unlimited AI sentence paraphrasing
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Custom style guide creation
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Browser add‑on for web writing
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Team management with shared guide
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150,000 character text limit
LanguageTool use cases
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Edit multilingual academic papers in real time using LanguageTool's browser extension, ensuring accurate grammar and style without switching applications
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Automate email proofreading in multiple languages with LanguageTool's Word add‑in, catching typos and suggesting formal tone for professional communication
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Build a custom grammar‑checking microservice for a multilingual SaaS platform by integrating LanguageTool's API, providing instant feedback on user-generated content
LanguageTool user reviews
Based on 17 reviews, 82% of users recommend LanguageTool, rated highly for ease of use.
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Main competitors of LanguageTool
Here are some of the major competitors comparisons vs. LanguageTool.
Who is LanguageTool for?
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Content creators
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E-commerce sellers
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Product designers
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Strategic leaders
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Digital marketers
LanguageTool FAQ
Is LanguageTool free?
Yes. LanguageTool is free to use and does not require a credit card.
Is LanguageTool safe to use?
LanguageTool is operated by Learneo, Inc., registered in United States. LanguageTool carries the TopAI.tools verified mark, which we award after a manual review of pricing transparency, published terms, public following and working functionality. It has a substantial audience that is independently measured month to month.
Is LanguageTool good?
LanguageTool has an 82% recommendation rate from 17 reviewers on TopAI.tools. Reviewers rate it highest on ease of use and quality of results.
What are the best alternatives to LanguageTool?
The closest alternatives to LanguageTool are Wordvice AI, Linguix, Quillbot Paraphraser, GrammarChecker.AI and ParagraphAI. You can compare them side by side in the alternatives section further down this page.
What does LanguageTool do with my data?
LanguageTool states that customer content is not used to train its models. Its privacy policy states that personal data is sold or shared for marketing purposes. Data may be shared with third-party service providers that help run the product.
Does LanguageTool auto-renew or offer refunds?
LanguageTool subscriptions renew automatically until you cancel.
Does LanguageTool have an API?
Yes. LanguageTool offers an API, so you can call it from your own applications instead of using the interface directly.
Is there a mobile app for LanguageTool?
Yes. LanguageTool has a mobile app alongside its web version.
Who made LanguageTool?
LanguageTool is built and operated by Learneo, Inc., a company registered in United States.
What does LanguageTool integrate with?
LanguageTool connects with Slack.
Compliance, privacy and billing terms are as stated in each product's own published documentation and have not been independently verified by TopAI.tools.
