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Review · Software & AI

LanguageTool review

A multilingual grammar, spelling and style checker that works in browsers, email clients and office apps.

By the Comredix review desk · Updated November 13, 2026

Quality (40%)
9.0
Experience (25%)
8.8
Value (35%)
8.4

LanguageTool is the pick if you write in a language other than English, or switch between several. It checks English, German, Portuguese, Spanish, French and Dutch plus more than 30 other languages and dialects, and it runs in more places than most rivals: Chrome, Edge, Firefox and Opera, Gmail, Apple Mail and Thunderbird, Google Docs, Word, Apple Pages, LibreOffice, and desktop apps for macOS and Windows. A free account adds a personal dictionary and statistics on your errors and languages. Premium adds more than 20,000 extra checks for seven languages, raises the limit to 150,000 characters per text field, and includes unlimited AI paraphrasing and a style guide with custom rules. There is also a Teams plan with user management and a shared style guide. The pricing page showed local currency from our location, so we could not confirm a USD price; it offers monthly, quarterly, annual and 2-year billing. We compared documented features and published plan details.

Who it is for

people who write in more than one language

Price

Free plan; Premium priced by billing interval (USD check pending).

US price check pending. See the vendor pricing page.

Key features

  • Checks English, German, Portuguese, Spanish, French, Dutch and more than 30 other languages and dialects
  • Premium runs more than 20,000 additional checks for English, German, French, Spanish, Dutch, Polish and Portuguese
  • Premium checks up to 150,000 characters per text field
  • Unlimited AI sentence paraphrasing and a custom Style Guide on Premium
  • Add-ons for Chrome, Edge, Firefox, Opera, Gmail, Outlook (beta), Apple Mail, Thunderbird, Google Docs, Word, Apple Pages and LibreOffice

Strengths and weaknesses

  • Strength: Widest language coverage on this list, with 30+ languages and dialects
  • Strength: Native apps for macOS and Windows plus add-ons for LibreOffice and Apple Pages
  • Strength: Free account includes a personal dictionary and writing statistics
  • Weakness: USD pricing could not be confirmed from our location; check the price shown in your region
  • Weakness: Outlook add-in is still labeled beta
  • Weakness: Advanced checks beyond English and six other languages are not listed for Premium

Key facts

  • Languages: English, German, Portuguese, Spanish, French, Dutch and 30+ more
  • Free plan: Yes, free account with personal dictionary
  • Premium text limit: Up to 150,000 characters per text field
  • Billing options: Monthly, quarterly, annual, 2 years

Where it ranks

LanguageTool is No. 2 in our Best Grammarly Alternatives verdict.

Alternatives we scored

Visit languagetool.org · Questions or corrections: editorial@comredix.com