Open source Grammarly alternatives

All Grammarly alternatives

1. 

   

   LanguageTool

   4.3(5.4K) · Firefox Add-onsLike

   LanguageTool checks grammar, spelling, punctuation and style in dozens of languages, including English, French, German, Spanish and Portuguese. It integrates with browsers, Microsoft Word, Google Docs, LibreOffice and desktop apps, and Premium adds AI rephrasing and deeper style checks. The core engine is open source under the LGPL, so organizations can run their own server for privacy.

   6 LanguageTool alternatives

   Pros

   • Checks grammar and style in dozens of languages
   • Open source core can run on your own server for privacy
   • Integrates with Word, Google Docs, LibreOffice and browsers

   Cons

   • AI rephrasing and deeper style checks require Premium
   • A self-hosted server lacks the Premium checks

   Cost / License

   FreemiumOpen source

   Categories

   AI Writing Assistants

   Platforms

   WebWindowsMacLinuxSelf-hostedBrowser extension

   Features

   GDPR compliantGrammar and spell checkIntegrationsParaphrasing

   Visit websiteMore about LanguageTool