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Jenni AI alternatives · Writing

Open-source alternatives to Jenni AI

Jenni AI is not described as open source on its own site. 19 of the 100 other writing tools in this directory are open source, according to their own sites.

Jenni AI has a free plan. Paid plans start at $12 per month, billed annually. 18 of them are free or have a free plan.

19 tools · Listings checked up to Nov 12, 2026 · Where the facts come from

The 12 closest to Jenni AI

  1. Typst

    Markup-based typesetting system with a collaborative web app

    • Typst starts at $7.99 per month, billed monthly ($79.99 billed yearly). Jenni AI starts at $12 per month, billed annually.
    • Only Typst lists macOS, Windows and Linux apps.
    • Only Jenni AI lists a browser extension.
    • Typst is open source and self-hostable, according to its own site.
    Typst pricing and details

  2. LanguageTool

    Grammar and style checker for more than 30 languages

    • LanguageTool starts at $4.99 per month on a 2-year plan ($119.80); $69.90 billed annually. Jenni AI starts at $12 per month, billed annually.
    • Only LanguageTool lists macOS, Windows and iOS apps.
    • LanguageTool is open source and self-hostable, according to its own site.
    • LanguageTool also covers grammar & style.
    LanguageTool pricing and details

  3. Zettlr

    Free, open-source Markdown editor for academic writing

    • Zettlr is free. Jenni AI starts at $12 per month, billed annually.
    • Only Zettlr lists macOS, Windows and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    Zettlr pricing and details

  4. Pressbooks

    Book publishing platform that exports EPUB, PDF and web books

    • Pressbooks starts at $12 per book / month ($120 billed yearly). Jenni AI starts at $12 per month, billed annually.
    • Jenni AI has a free plan. Pressbooks does not, though it has a free trial.
    • Only Jenni AI lists a browser extension.
    • Pressbooks is open source and self-hostable, according to its own site.
    Pressbooks pricing and details

  5. TeXstudio

    Open-source LaTeX editor with an integrated PDF viewer

    • TeXstudio is free. Jenni AI starts at $12 per month, billed annually.
    • Only TeXstudio lists Windows, macOS and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    TeXstudio pricing and details

  6. LyX

    Structure-based document processor built on LaTeX

    • LyX is free. Jenni AI starts at $12 per month, billed annually.
    • Only LyX lists Windows, macOS and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    LyX pricing and details

  7. Quarto

    Open-source publishing system for technical documents

    • Quarto is free. Jenni AI starts at $12 per month, billed annually.
    • Only Quarto lists Windows, macOS and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    Quarto pricing and details

  8. LibreOffice Writer

    Free, open-source word processor for Windows, macOS and Linux

    • LibreOffice Writer is free. Jenni AI starts at $12 per month, billed annually.
    • Only LibreOffice Writer lists Windows, macOS and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    LibreOffice Writer pricing and details

  9. FocusWriter

    Free distraction-free word processor for Windows and Linux

    • FocusWriter is free. Jenni AI starts at $12 per month, billed annually.
    • Only FocusWriter lists Windows and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    FocusWriter pricing and details

  10. ghostwriter

    Free, open-source Markdown editor from KDE for focused writing

    • ghostwriter is free. Jenni AI starts at $12 per month, billed annually.
    • Only ghostwriter lists Windows and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    ghostwriter pricing and details

  11. MarkText

    Free, open-source Markdown editor with in-place live rendering

    • MarkText is free. Jenni AI starts at $12 per month, billed annually.
    • Only MarkText lists macOS, Windows and Linux apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    MarkText pricing and details

  12. Manuskript

    Free, open-source novel planner with an outliner and index cards

    • Manuskript is free. Jenni AI starts at $12 per month, billed annually.
    • Only Manuskript lists Windows, Linux and macOS apps.
    • Only Jenni AI lists a web app.
    • Only Jenni AI lists a browser extension.
    Manuskript pricing and details

7 more that are open source

All 19 in one table

Common questions

Is there an open-source alternative to Jenni AI?

Yes. Typst, LanguageTool, Zettlr, Pressbooks, TeXstudio, LyX, Quarto, LibreOffice Writer and 11 more are open source, according to their own sites.

Is Jenni AI open source?

Jenni AI is not described as open source on its own site. The listing was checked on Oct 9, 2026 against the pages it cites.

Which of these writing tools are free?

Typst, LanguageTool, Zettlr, TeXstudio, LyX, Quarto, LibreOffice Writer, FocusWriter and 10 more are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Jenni AI: the alternatives its listing names first, then the tools that share the most features with it.