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LanguageTool Chrome extension

LanguageTool checks grammar, punctuation, and style across more than 25 languages, going beyond a basic spell checker. It's best for multilingual writers or anyone writing in English variants like UK or Australian. The catch: some advanced style rewriting and larger text checks are limited on the free plan.

  • PriceFreemium
  • CategoryWriting
  • ✓Privacy-friendly
Add to Chrome See alternatives

Pros

  • supports over 25 languages, including regional English variants
  • works without requiring an account
  • personal dictionary for custom words
  • works across Gmail, Facebook, Twitter, and most websites
  • no data sold to third parties, per the developer

Cons

  • fewer AI drafting and tone features compared to Grammarly
  • some advanced rewriting suggestions are limited without a paid plan
  • extension access to page content and activity is broad, as with any writing checker

Best for

  • writers working in multiple languages
  • catching grammar errors a basic spell checker misses
  • distinguishing between American, British, Australian, or Canadian English
  • people who prefer not to create an account

Skip it if

  • users who want deep AI-assisted rewriting and drafting (better suited to Grammarly)
  • people needing plagiarism detection built in

Key features

  • grammar, punctuation, and style checking beyond basic spell check
  • support for 25+ languages and English variants
  • works on Gmail, Facebook, Twitter, and most sites
  • personal dictionary for custom words
  • style suggestions for word choice and rephrasing
  • no account required to use

What LanguageTool does

LanguageTool checks text as you type for grammar mistakes, confused words, and punctuation issues that a basic spell checker would miss, along with style suggestions for clearer phrasing. It supports more than 25 languages and can tell the difference between American, British, Australian, and Canadian English.

LanguageTool free vs paid

The free version covers grammar, punctuation, and basic style checks across supported sites without needing an account. A paid plan (referenced in some regions as LanguageTool Premium) unlocks more advanced style rewriting and higher usage limits for people who write longer or more frequent text.

Is LanguageTool safe?

Like any grammar checker, LanguageTool needs to read the text you type on supported sites to check it, along with related website content. The developer states user data is not sold to third parties, and no account is required to use the core features.

Works great on

Gmail · Google Docs

Featured in

Comparisons

LanguageTool alternatives

  1. Grammarly

    Grammar and tone suggestions as you type.

    Freemium Writing ✓ AI-powered

    Review Add to Chrome

LanguageTool: FAQs

Is LanguageTool free?

Yes, the core grammar, punctuation, and style checking is free and doesn't require an account.

Is LanguageTool safe to use?

It reads text on pages where it's active to check it, which is standard for grammar tools. The developer states data isn't sold to third parties.

How do I use LanguageTool?

Install it, pin the icon, and start typing on a supported site. Underlined text shows suggestions you can click to fix.

Grammarly vs LanguageTool: which should I use?

LanguageTool supports more languages and works without an account; Grammarly offers deeper AI drafting and tone features but costs more for advanced tools.

What languages does LanguageTool support?

It supports more than 25 languages, including US, UK, Australian, and Canadian English variants.

Does LanguageTool work in Edge or Brave?

Yes, since both are Chromium-based browsers, you can install it from the Chrome Web Store.

How do I remove LanguageTool?

Right-click the extension icon in Chrome's toolbar, select Remove from Chrome, and confirm.

What are LanguageTool alternatives?

Grammarly, ProWritingAid, and Microsoft Editor are common alternatives with different pricing and language coverage.

Does LanguageTool need an account?

No, you can use the core checking features without registering.

Does LanguageTool work on Gmail and social media?

Yes, it works on Gmail, Facebook, Twitter, and most other websites with text fields.

Can I add custom words to LanguageTool?

Yes, it includes a personal dictionary so it stops flagging words you use regularly, like names or jargon.

Why is LanguageTool not detecting an error?

No grammar checker catches everything; complex or ambiguous sentences may need a manual read-through even with LanguageTool active.