Free Grammarly Alternatives for Microsoft Outlook

There are many alternatives to Grammarly for Microsoft Outlook if you are looking for a replacement. The best free Microsoft Outlook alternative is LanguageTool, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Grammarly and five of them are free and available for Microsoft Outlook so hopefully you can find a suitable replacement. Other interesting free Microsoft Outlook alternatives to Grammarly are ProWritingAid, Microsoft Editor , Speckie and Kutools For Outlook.

filter to find the best alternatives

Grammarly alternatives are mainly Grammar Checkers, but if you're looking for Plagiarism Checkers or AI Writing Tools 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. LanguageTool icon

    LanguageTool

     188 likes

    Proofreading software compatible with LibreOffice, Word, Firefox, and Chrome. Supports 20+ languages, offering two tiers: free and premium, with features like customizable checks, Microsoft add-on, and error detection in gender, ISBN, and IBAN. Offers open-source web and desktop versions.

    116 LanguageTool alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • iPhone
    • iPad
    • Microsoft Edge
    • ONLYOFFICE
    • Google Chrome
    • Microsoft Outlook
    • Safari
    • Visual Studio Code
    • Microsoft Word
    • Eclipse
    • TinyMCE
    • Google Docs
    • Thunderbird
    • Vim
    • Cloudron
    • Sublime Text
    • GNU Emacs
    • Opera
    • Gmail
    • LibreOffice
    • Apache OpenOffice
    • Mozilla Firefox
    • LibreOffice - Writer
    LanguageTool screenshot 1
     
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    11
  2. ProWritingAid icon

    ProWritingAid

     29 likes

    A complete grammar checker, style editor, and mentor, offering 25 writing reports. It identifies repetitive language, vague words, overuse of adverbs, passive voice, and complex structures while providing a word explorer and thesaurus.

    135 ProWritingAid alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Microsoft Edge
    • Google Chrome
    • Microsoft Outlook
    • Microsoft Word
    • Google Docs
    • Google Workspace
    • Mozilla Firefox
    ProWritingAid screenshot 1
     
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    6
  4. Microsoft Editor icon

    Microsoft Editor

     2 likes

    Write with confidence across documents, email, and the web. With features that help strengthen your spelling, grammar, and style, let Microsoft Editor be your intelligent writing assistant.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Microsoft Edge
    • Google Chrome
    • Microsoft Office Outlook
    • Microsoft Office Word
    Microsoft Editor screenshot 1
     
  5. Ad
    Screenshot
    Kutools For Outlook icon
    Kutools For Outlook

    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...

    https://www.extendoffice.com
    Learn More
  6. Speckie icon

    Speckie

     5 likes

    Speckie is the first and only dedicated, real-time spell check solution for Internet Explorer and Outlook.

    Cost / License

    • Free Personal
    • Proprietary

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Internet Explorer
    • Microsoft Office Outlook
    Speckie screenshot 1
     
  7. Kutools For Outlook icon

    Kutools For Outlook

     Like

    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
    Kutools For Outlook screenshot 1
     
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