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 Grammalecte.

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 Mac. 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. My Typo icon
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    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 (Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  2. Copy a direct link to this comment to your clipboard

    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.

    10 Kutools For Outlook alternatives

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Platforms

    • Windows
    • Microsoft Outlook
     
  3. Copy a direct link to this comment to your clipboard

    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

    Application type

    Platforms

    • Microsoft Word
    • Windows
     
  4. Copy a direct link to this comment to your clipboard

    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

    Platforms

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

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
     
  6. Copy a direct link to this comment to your clipboard

    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 (Pay once or Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • iPad
    • Android Tablet
     
  7. Copy a direct link to this comment to your clipboard

    AI-powered grammar correction tool using fine-tuned language models to fix grammatical errors in text.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • Docker
     
  8. Copy a direct link to this comment to your clipboard

    Aletheia is an AI-powered tool designed to analyze arguments rather than polish prose. It helps users understand how a piece of text is constructed, how its reasoning works, and where its logical weaknesses may lie.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
     
  9. Gramma icon
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    Command-line grammar checker.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • npm
    • JavaScript
     
  10. Copy a direct link to this comment to your clipboard

    Story Stream Editor helps fiction authors revise their novels with human-level AI feedback on plot, characters, and style while supporting their unique voice and protecting their creative vision.

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Platforms

    • Online
     
  11. Copy a direct link to this comment to your clipboard

    Grammar Checker is an advanced proofreading tool that identifies grammar and spelling errors, delivers clear explanations, and offers practical suggestions.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
     
  12. JustDone icon
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    All-in-one AI-powered workspace for academic, professional, and creative content creation, offering plagiarism detection, grammar and citation tools, homework help, browser integration, multilingual support, tone adjustments, collaboration, and over 100 features.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    • Google Chrome
     
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