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Built&Written vs Vellum

Vellum is a polished Mac-only formatting tool loved by indie authors. Built&Written is a cross-platform AI publishing platform that writes, designs, and formats, all in your browser.

Built&Written

$15/mo

Vellum

$249 once

Time saved

Self-paced

Built&Written
$15/mo
Vellum
$249 once
AI content generation
Book formatting
Cover design
KDP-ready export
Works on any deviceMac only
You own the content
Price$15/mo$249 once

The bottom line

Vellum is a beautifully designed tool, but it's Mac-only and handles formatting only. Built&Written works in any browser, adds AI writing and cover design, and gets you from idea to a print-ready first pass in about 5 minutes.

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No credit card required

See it in action

Vellum stops at formatting. Built&Written does the rest.

Vellum makes beautiful print books, and only on a Mac. Built&Written can write the book with you, generate the cover, and format the interior, all in any browser. Free to try; the Author plan is $15/mo billed annually. Vellum is $249 up front.

Built&Written

Writes the book, in your voice, in any browser

Vellum is a formatter: it lays out a manuscript you already finished. Built&Written can write the book with you. Paste in your notes, posts, or transcripts, teach it your voice from a few thousand words of your own writing, and it drafts full chapters that sound like you. And it runs in any browser, so Windows and Linux authors are not shut out the way they are with Mac-only Vellum.
Writes the book, in your voice, in any browser

Built&Written

The cover Vellum leaves out

Vellum stops at the interior, so you bring your own cover. Built&Written generates the cover art and lays out a full print wrap in the same tool: back, spine, and front, with the spine width computed from your page count at 300 DPI with proper bleed. Preview the whole wrap before you download it.
The cover Vellum leaves out

Built&Written

Full trim and typography control, no Mac required

Pick from five KDP trim sizes, set your fonts, line spacing, and page numbers, and watch the live page preview update as you go. It is the formatting control Vellum is known for, except it runs in your browser on Windows, Mac, or Linux instead of asking you to buy a Mac.
Full trim and typography control, no Mac required

Bring your finished manuscript

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