The best book formatting software in 2026

Your manuscript is finished. Now a store wants a file, and the tools that make one run from free to a monthly bill for life.

This is a ranking of six of them, judged on the three things an author actually pays for: whether the file passes the store’s review the first time, what the page looks like when it does, and what the tool costs across five books rather than one. We make the first pick on this list, and we say so here rather than in a footnote. What keeps that honest is the method: our figures are read out of our product when this page is built, theirs are quoted as each vendor publishes them with the date we read them, and a cell we could not verify is a dash, never a cross.

If you only read one line: Nueel for most authors, Vellum if you will not leave the Mac, Kindle Create if the whole plan is one Kindle ebook.

The six at a glance

A dash means the vendor does not publish it and we did not verify it. Vellum’s and Atticus’s prices were read from vellum.pub and atticus.io on 5 September 2026.

How we judged

Three criteria, in the order an author meets them.

Does the file pass? A rejected upload costs days, not minutes: the store’s review takes its time, sends back a line about margins or bleed or an unembedded font, and puts you at the back of the queue when you resubmit. A tool that finds the problem before the file leaves your machine saves more time than any other feature on this page.

What does the page look like? The reader never sees your software. They see whether the running heads sit right, whether the chapter openings match, whether the justified text has rivers of white running down it because hyphenation was switched off. We judged the output, not the feature list.

What do five books cost? Most authors who finish one book write another. So the price that matters is not the sticker but the sticker across a career: a one-time purchase is paid once, a per-book fee grows with your backlist, and a subscription runs as long as you want to open your own files. We quote each tool’s price as published and say which of the three shapes it is.

1. Nueel — our pick

• Best for: anyone who wants a professionally made book without hiring a professional, whether the draft is finished or not yet started.
• Price: $139 once. No per-book fee, no subscription.
• Runs on: any computer with a browser. Saves to your machine; works offline after the first load.

Nueel is the modern way to make a book: one studio, in your browser, from the first sentence to the file the store accepts. It is simple on the surface, because most of the decisions a publisher’s production team makes have already been made well, and it is professional underneath, because every one of those decisions can be changed. The rest of this list separates writing tools from formatting tools. Nueel does not, because a book is not two jobs.

Here is the moment it was built for. You upload the PDF, the store takes a day or two, and an email arrives saying the interior does not meet the requirements. It names a margin, or a bleed, or a font that was not embedded. It does not say which page. You fix what you think it means, upload again, and wait again.

Nueel runs that review before the file exists. Pick the store you are publishing to and the export is checked against that store’s own published rules: trim size, bleed, inside margin for your page count, embedded fonts, image resolution, page count limits. Every finding names the page it is on and links to the setting that fixes it. The 11 profiles cover Amazon KDP, IngramSpark, Lulu, Barnes & Noble Press, Apple Books, Google Play, PublishDrive. The EPUB passes the accessibility check the stores run before you send it, and one switch writes the advance reader copy for your reviewers. The whole check is documented in the export check.

The page itself is set the way a typesetter would set it. The 20 book designs are finished typographic systems, not chapter-heading themes: choose one and the entire manuscript takes it at once, from margins to running heads to the drop cap on chapter one. Change any measurement or none. Underneath, the engine does the work a good compositor does by hand: proper justification with hyphenation, widows and orphans controlled across the whole book, footnotes on the page they belong to. What you see in the preview is the print, because one engine draws both.

It opens the manuscript you already have. Import the Word file and your headings become chapters, your italics stay italic, your scene breaks are recognised as scene breaks. It is developed against War and Peace, all 563,542 words of it, so your book will not be the one that freezes it.

And if the manuscript is not finished, write it here. The outline sits beside the text, a word goal sits under every chapter, and a Zen button hides everything but the prose. What no word processor gives you is the book itself while you write it: a Pages panel shows the real typeset page your cursor is on, so you know whether the chapter opens on a right-hand page before you have finished the chapter. When you revise, the Analysis panel scores readability and pacing chapter by chapter, the Style panel finds where the book disagrees with itself, or with a named style guide such as Chicago. Citations become a printed bibliography. Every save is kept in a version history, and the book follows your account to any device, offline when you are.

One payment, and the reason is simple: there is one version of Nueel, in the browser, and it is always the current one. There is nothing to renew, so we do not charge you to renew it.

Pros: writing and making the book in one studio; the only tool here that checks the file against the store before export; finished designs rather than templates; runs on any computer; one payment for unlimited books.

Cons: a young product beside a decade-old incumbent; a browser app, not a native one; the first load and sign-in need the network.

Buy it if you want the book made properly and would rather not learn how, whether you are on chapter one or uploading tomorrow; or you are publishing to print or more than one store; or you have already had one file sent back. Skip it if your whole plan is one Kindle ebook: Kindle Create is free and good enough for that.

See the price

2. Vellum — the polished Mac app

• Best for: the author who lives on a Mac and wants the tool their writer friends already use.
• Price: $249.99 once for Vellum Press (print and ebooks), $199.99 for ebooks only, as Vellum publishes them.
• Runs on: Mac only, macOS 13 or newer.

Vellum is the incumbent, and the reputation is earned. It is a mature native Mac app with beautiful print output: 24 trim sizes plus large print, PDF/X-1a for the printer, automatic handling of widows and orphans. Its ebooks are generated in-app as validated EPUB 3, with accessible output the company advertises as passing the Ace check. Box sets are built in. If you have seen a self-published paperback that looked properly made, there is a fair chance Vellum set it.

Two things decide the purchase before any feature does. It runs only on macOS, which settles the question for half the market. And the two-tier price makes it the most expensive one-time tool on this list: the Press edition you need for a paperback is a hundred dollars above Atticus and well above Nueel.

Two smaller things worth knowing from Vellum’s own material. Its type is chosen from a fixed set of faces rather than an open library, and its notes go to the end of the chapter or book rather than to the foot of the page. Neither matters for most novels. Both matter for nonfiction with a bibliography.

Pros: the most mature tool here; beautiful print and validated, accessible EPUBs; box sets included.

Cons: Mac only; the highest one-time price; does not advertise a check against store rules before export.

Buy it if you will not leave the Mac and want the app everyone already trusts. Skip it if you work on Windows, or your book needs footnotes on the page.

3. Atticus — writing and formatting in one app

• Best for: the author starting from zero who wants one tool for drafting and formatting.
• Price: $147 once, as Atticus publishes it.
• Runs on: Windows, Mac, Linux and Chromebook, as a web app that installs like a desktop one.

Atticus is a word processor and a formatter in one. You draft in it, you format in it, and it exports EPUB, PDF and DOCX. By its own count it carries 17+ chapter themes and 1,500+ fonts, which is the same Google Fonts library every tool in this tier draws from, ours included. It works offline for writing, and it runs on every operating system an author is likely to own.

The formatting is lighter than Vellum’s or Nueel’s. Fewer of the fine typesetting decisions are yours to make, the themes are chapter headings more than whole-book designs, and Atticus does not advertise a check against a store’s requirements before export. Priced at $147, it sits against Nueel rather than Vellum: both write and format in one app, and the question between the two is how much of a publisher’s craft each one brings to the page.

Pros: one tool from first draft to final file; runs on every platform; one payment, well under Vellum.

Cons: lighter typographic control; themes rather than whole-book designs; no advertised store check.

Buy it if you have not started writing and want everything in one window. Skip it if you want the writing tool to know about the book: the real page beside the text, readability and consistency checks, a file checked for the store.

4. Reedsy Studio — free, in the browser

• Best for: the author testing whether formatting is hard before spending anything.
• Price: free.
• Runs on: the browser.

Reedsy’s formatting tool costs nothing and runs where you already are, which makes it the right first stop if you are not ready to pay. For a straightforward novel it produces a store-ready EPUB and a print PDF that will be accepted. The trade is depth: a handful of designs, little say over the typography, and a book that is fine rather than yours. Many authors who start here move on to a paid tool for the second book, once they have seen what they want to change and cannot.

Pros: free; nothing to install; enough for a straightforward book.

Cons: few designs and little typographic reach; you take the page it gives you.

5. Kindle Create — Amazon’s own free tool

• Best for: the author publishing one simple ebook, on Amazon only.
• Price: free.
• Runs on: Windows and Mac.

If the whole plan is one Kindle ebook, this is the path of least resistance: free, and the file it writes is the one Amazon’s own converter was built to accept. That is also its whole range. The file uploads to KDP and nowhere else, so an Apple Books or Kobo edition means starting again in another tool, and the typography is Amazon’s, with little say beyond it.

Pros: free; Amazon accepts the file without argument.

Cons: Amazon only; basic typography; the day you want a second store, you start over.

6. Adobe InDesign — the professional’s tool

• Best for: designers who already know it.
• Price: a monthly subscription through Adobe Creative Cloud.
• Runs on: Windows and Mac.

InDesign can set a book better than anything else on this page, in the hands of someone who has spent years with it. Total manual control over every page, every grid, every spread, which is exactly the trade: for an author formatting their own novel, it is a subscription to learn a profession. It is listed so you do not wonder whether you are missing something. You are not, unless typesetting is your trade.

Pros: total control; the best output in skilled hands; layouts nothing above can do.

Cons: a subscription that never ends; a profession to learn; overkill for a novel.

Vellum vs Atticus

The comparison most authors are actually making, so here it is on its own.

Vellum sets the better page. Its print output is the standard the rest of this list is measured against, and its ebooks validate. Atticus runs everywhere Vellum does not, includes the word processor Vellum lacks, and costs a hundred dollars less. Neither advertises a check against store rules before export, so with either you find out about a margin problem from the store.

The decision is usually made by the computer on your desk. On a Mac with a finished draft, Vellum. On Windows, or with the draft still ahead of you, Atticus.

Vellum vs Nueel

Vellum is a native Mac app; Nueel runs in the browser on any machine. Vellum sets type from a fixed set of faces and sends notes to the end of the chapter; Nueel draws on the open Google Fonts library and sets footnotes on the page. Vellum has more years and more books behind it; Nueel is the one that checks the file against 11 store profiles before you export it, and costs $139 rather than $249.99.

In one sentence: Vellum if you will not leave the Mac and want the app everyone already trusts; Nueel if you want the store check before export, any computer, and one lower payment.

Atticus vs Nueel

The closest pair on the list. Both write and format in one app, both are one payment, both run on any computer, both work offline. The difference is how much of a publisher’s work each one does for you. While you write, Atticus is a clean word processor; Nueel shows the real typeset page beside your cursor, scores the chapter’s readability and pacing, and finds where the book contradicts itself. When you export, Atticus applies a chapter theme and writes the file; Nueel applies a whole-book design, sets the type with a compositor’s rules, and checks the result against the store before the file exists. Atticus is the simpler tool. Nueel is the one that makes the book the way a publisher would, without asking you to know how.

How to choose in two minutes

• One Kindle ebook, nothing else, ever: Kindle Create. It is free and Amazon likes the file.
• Not sure formatting is worth paying for: Reedsy Studio, then come back when you know what you want to change.
• Mac, finished draft, want the incumbent: Vellum Press.
• No draft yet, want one app for everything: Nueel, if the finished book matters as much as the writing; Atticus, if you want the plainer word processor.
• Finished draft, any computer, print or more than one store: Nueel.
• You typeset books for a living: InDesign, and you knew that already.

When Nueel is not the right pick

If you are a Mac-only designer who wants manual control over every spread, InDesign or a native app gives you more hands-on room than a browser tool that ships finished designs. If your book is an interactive or heavily designed fixed-layout ebook, none of the tools on this list is the whole answer. And if you simply enjoy setting type by hand and have the years to spend, none of this is for you. That is a craft, not a chore.

We would rather you bought the right tool than ours. It is also, bluntly, better business: the refund rate on the wrong customers is what kills one-time-price software.

The close

Your book is already written. Formatting it should take an afternoon, not a week of fighting a store’s review queue. One payment, fourteen days to change your mind, nothing to install.

Make my book

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Prices and features for other tools are read from each vendor’s own site, vellum.pub and atticus.io, on 5 September 2026, and quoted as they publish them. Feature claims are theirs, not ours. If we have any of it wrong, tell us and we fix it. The same comparison as a table of marks, kept current on every build, is on the home page.

Common questions

What is the best book formatting software?

For most self-publishing authors, Nueel: one studio to write the book and make it, with finished book designs, a check of the PDF and EPUB against the store's own published rules before export, any browser, one payment. Vellum is the pick if you work on a Mac and want the incumbent native app. Kindle Create is the pick if the whole plan is one Kindle ebook on Amazon and nothing else.

Is Vellum worth the money?

If you own a Mac and want the tool most self-publishers already use, yes: the print output is beautiful, the EPUBs validate, box sets are included. What you are paying for beside that is a reputation. It is the most expensive one-time tool here, it runs nowhere but macOS, and it does not advertise a check against store requirements before export.

Vellum or Atticus, which is better?

Vellum sets the better page and is Mac-only. Atticus runs everywhere, includes a word processor, and costs about a hundred dollars less. If you draft in Word or Scrivener and only need to format, Vellum's output wins; if you want one app from first sentence to final file and do not own a Mac, Atticus is the only one of the two you can run.

Does Vellum work on Windows?

No. Vellum publishes a macOS requirement (macOS 13 or newer) and no Windows version. Windows and Linux authors choose between Atticus, Nueel and the free tools; Nueel runs in the browser, so the operating system does not enter into it.

Can I format a book for free?

Yes. Reedsy Studio formats in the browser at no cost and Kindle Create is Amazon's own free tool. The trade is control and reach: fewer designs, less say over the typography, and in Kindle Create a file that uploads to KDP and nowhere else. For one simple ebook, free is the right answer. For a print edition you will hold, or a book you are proud of, it usually is not.

What does a store check actually catch?

The things the store's own review would reject: a trim size the printer does not offer, missing bleed on a full-page image, an inside margin too narrow for the page count, a font that is not embedded, an image below the required resolution, a page count outside the binding's limits. Nueel reports each one with the page it is on, before the file leaves your machine.

Are you biased? You make Nueel.

Yes, and the post says so in its first paragraph. Our numbers are read out of the product at build time; theirs are quoted as the vendors publish them, with the date we read them. A cell we could not verify is a dash, never a cross. If we have a competitor wrong, tell us and we fix it.

What if I buy Nueel and hate it?

Open Account in the studio, then Refund. Within fourteen days the money comes back in full and the account is deleted, no reason asked. Import your actual manuscript on day one rather than a sample: two weeks is plenty to find out, and a sample tells you nothing about your own book.