Atticus vs Vellum vs Reedsy — Which Book Formatter Wins?

Your manuscript is done. Editing is done. Now you need to turn a Word document into something that looks like an actual book — with proper formatting for print and ebook. You’ve narrowed it down to Atticus, Vellum, and Reedsy, and every indie author forum has strong opinions about all three. Here’s how they actually compare.

Vellum: The Mac-Only Gold Standard

Vellum is the tool most professional indie authors use, and for good reason. It produces the cleanest ebook and print formatting of any tool on the market. The interface is elegant — you see your book as it will appear to readers while you work, with real-time previews for Kindle, Apple Books, Kobo, and print. Scene breaks, chapter headings, drop caps, and ornamental dividers look polished without any manual CSS editing.

The pricing model is one-time purchase: $249.99 for ebooks only or $299.99 for ebooks plus print. No subscription, no per-book fee, no limits on how many books you format. For an author planning to publish multiple books, the per-book cost drops quickly.

The dealbreaker for some: Vellum is Mac-only. No Windows version exists. If you’re on a PC, Vellum is not an option unless you rent Mac cloud access through services like MacStadium, which adds ongoing cost and complexity.

Atticus: The Cross-Platform Challenger

Atticus launched specifically to fill the gap that Vellum’s Mac exclusivity created. It runs in a browser on Mac, Windows, Linux, and Chromebook. The interface is clean and the formatting output is good — not quite Vellum level, but close enough that most readers won’t notice the difference.

Atticus includes a built-in writing editor, which Vellum does not. You can draft, edit, and format all in one tool. Whether that’s valuable depends on your workflow — if you already write in Scrivener or Word, the writing feature is irrelevant. If you want one tool for everything, it’s a genuine advantage.

Pricing is a one-time payment of $147.99. That’s significantly cheaper than Vellum and includes both ebook and print formatting. For a first-time self-publisher watching their budget, Atticus makes financial sense.

Where Atticus falls short: the typography and design options aren’t as refined as Vellum’s. Chapter heading customization is more limited. Print output occasionally needs manual adjustments for margin and gutter settings that Vellum handles automatically. The tool is actively developed and improving, but it’s younger software and it shows in the polish.

Reedsy Book Editor: The Free Option

Reedsy’s Book Editor is free and runs in the browser. It produces properly formatted EPUB and PDF files that meet the submission requirements for Amazon KDP, IngramSpark, and other platforms. For an author who needs basic formatting without spending money, Reedsy delivers.

The tradeoff is customization. Reedsy offers limited design options compared to Vellum or Atticus. You get a handful of trim sizes, basic chapter heading styles, and standard typography. The output looks professional but generic — your book will look like every other book formatted with Reedsy.

Reedsy also functions as a writing tool and a marketplace for freelance editors, designers, and marketers. If you’re early in your publishing journey and want a free, all-in-one starting point, Reedsy removes financial barriers entirely.

The Verdict

Vellum wins on output quality and is the right choice for serious indie authors on Mac who plan to publish multiple books. The one-time cost pays for itself quickly, and the formatting quality is unmatched.

Atticus wins on value and accessibility. It’s the best choice for Windows and Linux users, budget-conscious authors, and anyone who wants writing and formatting in one tool. The output quality gap with Vellum is small and narrowing.

Reedsy wins on cost — it’s free. If you’re publishing your first book and don’t want to invest in tools before you know if self-publishing is for you, start with Reedsy. You can always upgrade to Atticus or Vellum for your second book.

For most indie authors who plan to make publishing a career, Vellum (Mac) or Atticus (everything else) is worth the investment. The time saved on formatting pays for the tool within your first two or three books.