Documents & Writing·Standings

Best AI Writing Assistants in 2026

• 25 platforms
• 5 with a public API on this page
• 23 with a free tier
• Checked 28 Sept 2026

1. #PlatformSignalPlugs inPrice
2. 1
   DW

   DeepL Writedeepl.com

   DeepL Write is an AI writing assistant that corrects grammar, spelling and punctuation and suggests alternative wording.

   7.5 APIOpenFree Free tier · from $8.74/mo
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3. 2
   Q

   QuillBotquillbot.com

   QuillBot provides AI tools for paraphrasing, grammar correction, summarization, translation, originality checking, chat, image generation and related writing…

   7.4 APIOpenFree Free tier
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4. 3
   T

   TextCortextextcortex.com

   TextCortex is an enterprise AI platform for building, deploying and governing AI agents connected to company knowledge and workflows.

   7.4 APIOpenFree Free tier · from $29.99/mo
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5. 4
   G

   Grammarlygrammarly.com
   7.3 APIOpenFree Free tier · from $12/mo
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6. 5
   T

   Trinkatrinka.ai

   Trinka is an AI grammar correction and language enhancement assistant designed for academic and technical writing.

   7.3 APIOpenFree Free tier · from $300/yr
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7. 6
   P

   Paperpalpaperpal.com

   Paperpal is an AI academic writing and research assistant covering drafting, editing, research, citations, document checking and submission preparation.

   7.3 APIOpenFree Free tier · from $139/yr
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8. 7
   W

   Wordtunewordtune.com

   Wordtune is a cloud AI writing assistant for rewriting, paraphrasing, grammar and spelling correction, tone changes, expansion, shortening and text generation.

   7.2 APIOpenFree Free tier · from $6.99/mo
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9. 8
   W

   Writefullwritefull.com

   Writefull provides AI language feedback and writing assistance aimed at academic and research writing.

   7.2 APIOpenFree Free tier · from $150/yr
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10. 9
    L

    LanguageToollanguagetool.org
    7.1 APIOpenFree Free tier
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11. 10
    JA

    Jenni AIjenni.ai

    Jenni is an AI-powered writing platform for academic and professional work, combining a document editor with tools for drafting, editing, citing, and reviewing.

    7.1 APIOpenFree Free tier · from $12/mo
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12. 11
    S

    Saplingsapling.ai

    Sapling provides an API/SDK toolkit for integrating language model-powered functionality into applications, alongside writing assistance for teams.

    7.0 APIOpenFree Free tier · from $144/yr
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13. 12
    I

    InstaTextinstatext.io

    InstaText improves user-provided writing for clarity, readability, grammar, and style without generating new content.

    7.0 APIOpenFree Free tier
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14. 13
    WA

    Wordvice AIwordvice.ai

    Wordvice AI is an online writing assistant combining proofreading, paraphrasing, translation, summarization, plagiarism checking, AI detection, ChatPDF and…

    7.0 APIOpenFree Free tier
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15. 14
    P

    ProWritingAidprowritingaid.com
    6.9 APIOpenFree Free tier · from $120/yr
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16. 15
    P

    Polishpolish.work

    Polish fixes, rewrites, and translates selected text inside desktop apps using a keyboard shortcut.

    6.9 APIOpenFree Free tier · from $4/mo
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17. 16
    HE

    Hemingway Editorhemingwayapp.com

    Hemingway Editor scores writing for readability and highlights sentences and issues that can weaken or complicate a message.

    6.8 APIOpenFree Free tier
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18. 17
    L

    Lexlex.page

    Lex describes itself as collaborative documents with AI editing tools.

    6.8 APIOpenFree Free tier · from $180/yr
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19. 18
    S

    StealthWriterstealthwriter.ai

    StealthWriter rewrites AI-assisted text for more natural phrasing and includes an AI detector.

    6.7 APIOpenFree Free tier · from $20/mo
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20. 19
    H

    HyperWritehyperwriteai.com
    6.5 APIOpenFree Free tier · from $16/mo
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21. 20
    CA

    Compose AIcompose.ai

    Compose AI describes itself as an AI writing assistant for generating text and autocompleting sentences while writing emails, documents, and chats.

    6.4 APIOpenFree Free tier
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22. 21
    SP

    Smodin Plagiarism Checkersmodin.io

    The plagiarism checker compares text against web and academic sources and returns similarity scores, matched sources, and highlighted sections.

    6.4 APIOpenFree Free tier · from $10/mo
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23. 22
    L

    Lavenderlavender.ai
    6.3 APIOpenFree Free tier · from $27/mo
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24. 23
    P

    PaperRaterpaperrater.com
    6.1 APIOpenFree Free tier
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25. 24
    W

    WordAiwordai.com

    WordAi is a cloud text-rewriting service that restructures articles, paragraphs, and sentences while retaining their meaning.

    6.1 APIOpenFree From $9/mo
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26. 25
    WM

    Word Modelwordmodel.ai

    Word Model is an AI editing add-in that works inside Microsoft Word.

    5.8 APIOpenFree —
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