Format & Export Free · in-browser · optional cloud history

Plain Text to Markdown Chapters

Split on "Chapter X" lines and output Markdown with H1 headings.

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Runs in your browser. Results can be saved so you can reopen them when signed in — guests are nudged after a couple of uses.
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Paste your text above, then click Transform — or try Sample.

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Chapter Heading Formatter Scene Break Standardizer Smart Quote Normalizer Manuscript Diff

About this tool

Markdown plays nicely with Git, static site generators, and some writing pipelines. This plain text to Markdown tool splits your manuscript on chapter heading lines and outputs H1 chapter headings with body text — ready for docs, wikis, or version control.

Export formatting before KDP upload

Kindle and print workflows punish inconsistent quotes, scene breaks, and chapter headings. Normalize formatting after content edits are done—otherwise you will re-export three times. These transformers run locally; nothing is uploaded.

Publish & launch guide · KDP upload checklist · Export documentation

How to use it

  1. Paste plain text with Chapter 1, Chapter 2, etc. headings.
  2. Click Transform to convert to Markdown.
  3. Review H1 chapter headings in the output.
  4. Click Copy result to save.
  5. Use in GitHub, Obsidian, or static site workflows.

Tips for fiction authors

  • Markdown version control with Git lets you diff revisions, branch for experiments, and revert bad edits — powerful for long fiction projects.
  • Obsidian and other Markdown editors work well for fiction planning. Convert your draft to Markdown and use wiki-links between scenes.
  • Static site generators like Hugo or Jekyll can turn Markdown chapters into a web serial. Convert once, publish chapter by chapter.
  • After converting, check that scene breaks and italics survived. Plain text loses formatting that you may need to re-add in Markdown syntax.

Common questions

What chapter heading patterns work?

Lines like "Chapter 1", "CHAPTER 2: Title", or "Chapter IV" at the start of a line.

Does it add formatting beyond headings?

It adds H1 chapter headings and preserves paragraph breaks — no bold or italic inference.

Can I convert back from Markdown?

This tool is one-way to Markdown. Use your editor's export for reverse conversion.

Related guides

Beta Reader Workflow for AI-Assisted Manuscripts BYOK Cost Control: Budget a Full Novel with API Keys The Five-Pass Revision Order for AI-Assisted Novels KDP Upload Checklist After an AI-Assisted First Draft