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Sudowrite alternatives · Writing

Open-source alternatives to Sudowrite

Sudowrite 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.

Sudowrite is a paid product with a free trial, starting at $10 per month, billed annually (Hobby & Student). 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 Sudowrite

  1. 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. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • LanguageTool has a free plan. Sudowrite does not, though it has a free trial.
    • Only LanguageTool lists macOS and Windows apps.
    • Only LanguageTool lists a browser extension.
  2. LibreOffice Writer

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

    • LibreOffice Writer is free. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • LibreOffice Writer has a free plan. Sudowrite does not, though it has a free trial.
    • Only LibreOffice Writer lists Windows, macOS and Linux apps.
    • Only Sudowrite lists a web app.
  3. Typst

    Markup-based typesetting system with a collaborative web app

    • Typst starts at $7.99 per month, billed monthly ($79.99 billed yearly). Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • Typst has a free plan. Sudowrite does not, though it has a free trial.
    • Only Typst lists macOS, Windows and Linux apps.
    • Only Sudowrite lists iOS and Android apps.
  4. Zettlr

    Free, open-source Markdown editor for academic writing

    • Zettlr is free. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • Zettlr has a free plan. Sudowrite does not, though it has a free trial.
    • Only Zettlr lists macOS, Windows and Linux apps.
    • Only Sudowrite lists a web app.
  5. Manuskript

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

    • Manuskript is free. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • Manuskript has a free plan. Sudowrite does not, though it has a free trial.
    • Only Manuskript lists Windows, Linux and macOS apps.
    • Only Sudowrite lists a web app.
  6. novelWriter

    Free, open-source plain-text editor for writing novels

    • novelWriter is free. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • novelWriter has a free plan. Sudowrite does not, though it has a free trial.
    • Only novelWriter lists Linux and Windows apps.
    • Only Sudowrite lists a web app.
  7. bibisco

    Novel planning and writing software built around characters

    • bibisco starts at $3.49 per month for Everywhere sync; desktop Supporters Edition is $69 one-time. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • bibisco has a free plan. Sudowrite does not, though it has a free trial.
    • Only bibisco lists Windows, macOS and Linux apps.
    • Only Sudowrite lists a web app.
  8. Trelby

    Free, open-source screenwriting program for desktop

    • Trelby is free. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • Trelby has a free plan. Sudowrite does not, though it has a free trial.
    • Only Trelby lists Windows, macOS and Linux apps.
    • Only Sudowrite lists a web app.
  9. Beat

    Free, open-source Fountain screenwriting app for Mac and iOS

    • Beat starts at $11.99 one-time for the iOS app. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • Beat has a free plan. Sudowrite does not, though it has a free trial.
    • Only Beat lists a macOS app.
    • Only Sudowrite lists a web app.
  10. Pressbooks

    Book publishing platform that exports EPUB, PDF and web books

    • Pressbooks starts at $12 per book / month ($120 billed yearly). Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • Only Sudowrite lists iOS and Android apps.
    • Pressbooks is open source and self-hostable, according to its own site.
    • Sudowrite also covers dictation and chat assistant.
  11. FocusWriter

    Free distraction-free word processor for Windows and Linux

    • FocusWriter is free. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • FocusWriter has a free plan. Sudowrite does not, though it has a free trial.
    • Only FocusWriter lists Windows and Linux apps.
    • Only Sudowrite lists a web app.
  12. ghostwriter

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

    • ghostwriter is free. Sudowrite starts at $10 per month, billed annually (Hobby & Student).
    • ghostwriter has a free plan. Sudowrite does not, though it has a free trial.
    • Only ghostwriter lists Windows and Linux apps.
    • Only Sudowrite lists a web app.

Common questions

Is there an open-source alternative to Sudowrite?

Yes. LanguageTool, LibreOffice Writer, Typst, Zettlr, Manuskript, novelWriter, bibisco, Trelby and 11 more are open source, according to their own sites.

Is Sudowrite open source?

Sudowrite is not described as open source on its own site. The listing was checked on Oct 5, 2026 against the pages it cites.

Which of these writing tools are free?

LanguageTool, LibreOffice Writer, Typst, Zettlr, Manuskript, novelWriter, bibisco, Trelby 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 Sudowrite: the alternatives its listing names first, then the tools that share the most features with it.