CalcLab
Writers Tools

Manuscript Formatter — KDP & Smashwords-Ready DOCX Export

Paste your manuscript and get a properly formatted DOCX: chapter pagination, indented paragraphs, Smart-quote conversion, scene breaks, table of contents, and KDP/Smashwords-ready trim sizes.

Last reviewed Apr 28, 2026Reviewed by CalcLab TeamMethodology

How this is calculated

What it does

Paste a draft manuscript. The formatter detects chapter breaks, joins broken paragraphs, applies a 0.36" first-line indent, double-spaces lines, converts straight quotes to smart quotes, normalizes em/en dashes, and outputs a DOCX with chapters paginated and styled in Garamond 12pt — matching common KDP and Smashwords templates.

Privacy

All processing happens entirely in your browser. Your manuscript is never uploaded, logged, or stored on our servers.

Chapter detection

Default pattern matches lines that begin with Chapter, CHAPTER, or a Markdown # heading. You can change the regex if your draft uses a different convention. Scene breaks use *** or --- on their own line and render centered with extra spacing.

Frequently asked

  • DOCX (KDP, Smashwords, IngramSpark), EPUB 3, and print-ready PDF at 5x8, 5.25x8, 5.5x8.5, and 6x9 trim sizes.
  • No. Formatting happens entirely in your browser. Your manuscript never touches our servers.
  • Yes. Lines starting with 'Chapter', 'CHAPTER', '#', or matching configurable patterns are auto-detected as chapter breaks.