Plain Text to Markdown Chapters

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

Part of Entangled Text — AI book-writing studio for fiction authors. Free, runs in your browser, no login required.

Runs in your browser. Your manuscript is not uploaded to our servers.

0 words
Ctrl+Enter

Format & Export · Free · Private

About this free plain text to markdown chapters

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.

How to use the Plain Text to Markdown Chapters

  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.

Frequently asked 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.

Browse all free writing tools for fiction authors

Ship your edited book

These tools help you polish an AI draft. When you are ready for whole-book editing with diff review, exports, and KDP prep — Entangled Text has you covered.

Start free Edit a book with AI

Related free writing tools