Free Grammarly Alternatives

The best free alternative to Grammarly is LanguageTool, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Grammarly and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Grammarly are ProWritingAid, DeepL Write, Slick Write and Harper.

filter to find the best alternatives

Grammarly alternatives are mainly Grammar Checkers, but if you're looking for AI Writing Tools or Plagiarism Checkers you can filter on that. Other popular filters include Open Source, Windows, iPhone, Linux, iPad, Apache OpenOffice and Android. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Grammarly.
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Alternatives list

  1. "Content is King" but Content won't reign as King unless it connects with your customers at an emotional level.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
     
  2. Telegram AI bot that can answer questions in ChatGPT style, check grammar and help any language studies, transcribe audio or summarize texts.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Telegram
     
  3. ru-text icon
     1 like

    ru-text is an open-source plugin that brings Russian text quality rules directly into AI coding agents. It provides ~1,040 independently formulated rules across 7 domains:

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Cursor
    • Notion
    • Claude Code
    • OpenAI Codex
    • OpenClaw
     
  4. SENTENCIFY icon
     2 likes

    Sentencify is a 100% free AI writing assistant that brings premium paraphrasing capabilities directly to your desktop. It is designed as a complete alternative to paid tools like Quillbot and Grammarly, offering advanced rewriting features without any subscription fees or daily...

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Platforms

    • Windows
    • Mac
    • Online
    • Google Chrome
     
  5. WriteScholar icon
     1 like

    Professor-style AI feedback on your essays: thesis, evidence, organization, and citations. For students who want real draft improvement, not only spell-check.

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  6. My Typo icon
     1 like

    My Typo solves a growing problem: legal documents are increasingly complex, and manual proofreading can’t keep up. With AI trained for legal work, it detects inconsistencies in contracts, filings, and M&A deal documents-automatically.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  7. Delivers over 100 additional features to Outlook, automating email workflows with auto-reply, customizable CC/BCC rules, one-click forwarding, duplicate email and contact removal, and advanced junk filtering for streamlined daily communication and management.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Windows
    • Microsoft Outlook
     
  8. A background assistant that removes the stress of spelling and grammar. Built for accessibility, designed to stay out of your way.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
     
  9. TextCraft is your ultimate AI-powered companion for Microsoft Word, seamlessly blending tools like text generation and proofreading directly into your workspace. No internet? No problem. Built for offline use, TextCraft puts cutting-edge AI at your fingertips while keeping your...

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Microsoft Word
    • Windows
     
  10. AI Slop Index (ASI) is VibeAxis’s open method and toolset for scoring synthetic-sounding content. It flags vague quantifiers, passive voice, credulous claims, and other slop signals, then rolls them into a transparent score. MIT-licensed components; zero tracking.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  11. Quillza icon
     Like

    Quillza is a free online platform that offers a range of smart tools to help people improve their writing. Whether you want to rewrite a paragraph, fix grammar mistakes, or generate content from scratch, Quillza makes it simple.

    7 Quillza alternatives

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Online
     
  12. Friday is an AI-powered email assistant designed to save time and improve communication. With one click, you can generate professional responses, create emails from short prompts, and adjust tone or language for any context.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • iPad
    • Android Tablet
     
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