Free alternatives to Vellum

Reedsy Studio→

Draft chapters and produce ebook/print interior files.

Core writing and formatting remain free; export EPUB3 and print-ready PDF. Optional Craft/Outline paid add-ons. Browser/account required.

Calibre→

Manage your ebook library and convert manuscripts into standard EPUB, MOBI, and PDF formats.

Free and open source (GPL-3.0).

Pandoc→

Convert Markdown briefs to Word documents or HTML on your own computer.

Free open-source software (GPL). No document quota; uses your computer.