Best Book Writing Software and Apps in 2026: 8 Picks for Authors

The short answer, as of November 2026: the pages I could load show a wide price spread for book writing software. Reedsy Studio lists its core writing and formatting tools as free, Atticus lists a one-time $147, Vellum lists $199.99 for ebooks or $249.99 with paperbacks and runs only on a Mac, and Dabble and Novelcrafter charge monthly or annual plans. Scrivener is the long-manuscript workhorse, Microsoft Word and Google Docs are the tools almost everyone already has, and Atticus and Vellum are the two that turn a finished manuscript into a clean ebook and print file.

I wrote this at Ecommerce Paradise for people who want to write a book, whether that is a novel, a nonfiction guide, or an ebook that supports a store or brand. The picks are my editorial opinion based on each company’s published pages. I did not run lab tests or hands-on trials of these tools, and where a page did not show a price, a limit, or an export format, I say so and tell you where to look.

Disclosure: some links below are affiliate links, which means I may earn a commission at no extra cost to you. This is general information about software, not legal or tax advice, and prices and terms change, so check each provider before you pay.

The 8 Best Book Writing Software Picks at a Glance

All amounts are shown the way each vendor’s page shows them (most use a plain “$” with no currency code), taken from the pages I loaded in November 2026. “Not shown” means the page I could load did not display that detail.

My quick picks: Reedsy Studio if you want to start at zero cost, Scrivener if your book has many parts and research, Atticus if you want one payment and a cross-platform formatter, Vellum if you are on a Mac and want the most polished files, and Word or Google Docs if collaboration with an editor matters more than book-specific features.

How I Chose These Picks

I started with the tools authors actually use to draft, organize, and format a book, then kept the ones whose own pages show a price or say plainly that it is not published. Based on each company’s published pages, I compared eight things: price and whether it is a one-time payment or a subscription, platforms, formatting and export formats, manuscript organization, collaboration, goals and tracking, free tier or trial, and what the page says about AI.

The ranking and the “best for” labels are my opinion, not a score from testing. I left out tools I could not tie to an official page, and I treated AI assistants separately further down, because they help with drafting and editing but are not book-formatting tools. If you plan to sell your finished book as a digital product, my guide to Gumroad alternatives for digital sellers covers the storefront side.

1. Scrivener: Best for Long, Complex Manuscripts

Scrivener is built around the idea that a book is a pile of pieces you rearrange, not one long page. The Scrivener overview page lists a binder for sections and research, a corkboard with index-card synopses (marked as iPad-only in one section of the page), an outliner, a mode that edits several sections as one document, a split editor, snapshots with a compare feature, and word or character targets.

It runs on macOS 11 or newer, 64-bit Windows 10 or newer, and iOS 11 or newer, and the page notes that licences are sold separately. On the store page, the iOS and iPadOS app shows US$23.99, while the Mac and Windows prices are not shown on the pages I could load. The store page offers a 30-day free trial for macOS and Windows, and the FAQ page says the trial lasts 30 days of use, so using it every other day stretches it over a longer calendar period.

On export, the overview page lists Microsoft Word, RTF, PDF, EPUB and Kindle e-books, plus other formats. Whether it is a one-time licence or a subscription is not stated outright; the FAQ says minor updates are free and major updates are sometimes paid, which points to a one-time licence with paid major upgrades, but confirm at checkout.

• Strengths: strong structure for long books, research kept next to the draft, snapshots before big rewrites, and a free trial counted in days of use.
• Watch-outs: a learning curve, separate licences per platform, and Mac and Windows prices that I could not confirm.

Verdict: the best fit if your manuscript is big, messy, or research-heavy and you want to move chapters around freely.

2. Atticus: Best for Formatting on Any Computer

Atticus combines a writing editor with a book formatter. Its page lists $147 as a single price with no currency code, described as a one-time payment with updates for life, and a 30-day money-back guarantee. It lists Windows, Mac, Linux, and Chromebook support, and says it also works as a web app in any browser, online or offline.

For formatting, the page lists 17 templates (with 1200+ unique combinations cited), a custom theme builder, full-bleed images, footnotes, callout boxes, and device previews that include several Kindle models, Kobo and Nook. Export is EPUB, PDF, and DOCX, and import is DOCX only. On the writing side it lists drag-and-drop chapters, book goals, a habit tracker, and cloud backups, while version control is marked as coming soon. A free trial and collaboration features are not shown on the page I loaded.

• Strengths: one payment instead of a subscription, works on Windows and Linux as well as Mac, and covers writing and formatting in one app.
• Watch-outs: no collaboration shown, no trial shown, and the page does not name Kindle as an export format, so test your EPUB in Kindle Previewer as KDP suggests (more on that below).

Verdict: a strong choice if you are on Windows or want one purchase that handles both drafting and ebook or print layout.

3. Vellum: Best for Polished Ebook and Print Files on a Mac

Vellum is a formatting tool rather than a drafting tool, and it is Mac only, requiring macOS 14 or newer. The page lists Vellum Ebooks at $199.99 for unlimited ebooks and Vellum Press at $249.99 for unlimited ebooks and paperbacks, with prices that exclude tax and no currency named. Whether the payment is one-time or a subscription is not shown on the page I loaded.

You can download it free and build, style, and preview a book at no cost, and you pay when you are ready to publish. A free trial period is not shown. Export is validated EPUB 3 and EPUB 2 for ebooks, with MOBI available for beta-reader copies, and print PDF/X-1a for paperbacks or hardcovers. The page also lists 24 trim sizes plus large print, automatic margins and page numbers, drop caps, box sets, and live previews of ebook and print editions that stay in sync.

• Strengths: a clean, template-driven layout, accessible ebook output, and print and ebook editions generated together.
• Watch-outs: you need a Mac, it does not draft the book for you, and a trial or one-time billing is not stated.

Verdict: a good fit if you already write elsewhere, own a Mac, and want a professional-looking interior.

4. Reedsy Studio: Best Free Option

Reedsy Studio is the budget leader on the pages I loaded. Its page says the writing editor, formatting with templates, export to EPUB and print-ready PDF, and real-time collaboration with track changes and comments are all included free. It also lists writing goals with daily check-ins.

Optional paid add-ons are listed as Studio Essential at $4.99 a month and Outlining at $7.99 a month, covering advanced outlining, writing stats, and dark mode, and the page mentions a 30-day free trial with no credit card required. It runs in mobile and desktop web browsers with no dedicated mobile app, though you can add it to a phone home screen. A desktop app and usage limits are not shown.

• Strengths: free core tools, EPUB and PDF export, and collaboration at no cost.
• Watch-outs: browser only, and limits and offline behavior are not shown on the page.

Verdict: the first thing I would try if you have not committed to a tool and want to produce a real ebook and print PDF for nothing.

5. Microsoft Word: Best for Editors, Agents and DOCX Workflows

Microsoft Word is still the default format editors and many collaborators expect. The page I loaded shows track changes, version history, and real-time co-authoring, including with people who do not have an account, and it lists Windows, macOS, Android, iOS, and Word on the web.

The US English page shows Microsoft 365 Personal at a regular $9.99 a month or $99.99 a year, with limited-time first-month ($6.99) and first-year ($69.99) offers that renew at the regular price unless canceled, and Microsoft 365 Family at $12.99 a month or $129.99 a year. Both list a one-month free trial, which cannot be combined with the limited-time offer. Word on the web is free with no subscription. A one-time purchase option and a navigation-pane feature for headings are not shown on the page.

The KDP help page on ebook manuscripts says DOC and DOCX files are accepted and most convert well, but complex formatting may not, so you should check the result in Kindle Previewer. That means Word works for KDP if you keep styles simple.

• Strengths: universal compatibility, strong review tools, and a free web version.
• Watch-outs: no book-specific organization, and heavy formatting can break on conversion.

Verdict: use it when you work with an editor or when a client or publisher asks for DOCX.

6. Google Docs: Best for Free Drafting and Co-Writing

Google Docs is the easiest way to draft anywhere. The page says anyone with a Google Account can create in Docs, lists simultaneous co-editing, version history that lets you revert, and access, creation, and editing without an internet connection. Workspace plan prices are not shown on the page I loaded.

The download formats are the gap. The Docs product page I loaded does not list export or download formats, so I cannot confirm EPUB or DOCX export from the pages I could load, and you should check the File menu yourself. For a book, many authors draft in Docs and move the text into Atticus, Vellum, or Reedsy Studio for layout.

• Strengths: free, easy sharing with beta readers, and version history.
• Watch-outs: no book structure tools, and export formats are not confirmed on the pages I loaded.

Verdict: the lowest-friction place to draft if you do not need a book-specific app.

7. Dabble: Best for Plotting and Daily Goals

Dabble targets fiction writers who like to plan scenes and track word counts. Its pricing page shows USD by default, with a Writer plan at $15 a month billed annually ($180 a year), Author at $23 a month billed annually ($276 a year) or $699 once, and Bestseller at $39 a month billed annually ($468 a year) or $899 once for the lifetime option. Monthly-billed prices are not shown.

The Writer plan lists unlimited manuscripts, cloud backup and sync, goals and stats, a plot grid, a story notebook with character profiles, and versioning. Author adds comments, track changes, advanced grammar and style checks, and beta-reader and editor support. The trial is 14 days with no credit card, and the page mentions a money-back guarantee without details I could confirm. The page lists no AI features and says any future AI features would be opt-in. Export formats are not shown beyond a statement that manuscripts stay exportable.

• Strengths: plotting tools, goal tracking, and a lifetime option for people who dislike subscriptions.
• Watch-outs: export formats and platform details are not shown, and the lifetime prices are high.

Verdict: a fit for novelists who want planning and goals in one place.

8. Novelcrafter: Best for Series Notes and Optional AI

Novelcrafter centers on a Codex for story details. Its page lists monthly USD prices of $4 (Scribe), $8 (Hobbyist), $14 (Artisan), and $20 (Specialist), says annual billing gives two months off without showing the annual prices, and offers a 21-day trial with no credit card and all features unlocked. There is no free plan.

Scribe has no AI features. Hobbyist adds AI that uses your own API key, including scene summaries and character extraction, and the page does not state AI usage caps. Specialist adds inviting others to your novels and collaborative writing. Platforms and export formats are not shown on the page I loaded.

• Strengths: low entry price, a series-friendly notes system, and AI that is optional.
• Watch-outs: bring-your-own-key AI means you pay the AI provider separately, and exports and platforms are not shown.

Verdict: worth a trial if you write series or worlds with a lot of continuity to track.

Also Worth a Look: Ulysses, Plottr and Sudowrite

Ulysses

Ulysses lists $39.99 a year or $5.99 a month with prices stated for the U.S., and it runs on Mac, iPad, and iPhone. The home page says it syncs across those devices, exports PDF and Word documents and ebooks, and lets you set goals and deadlines; the ebook format is not named and a trial length is not shown. It suits writers inside Apple’s ecosystem who prefer a distraction-free editor.

Plottr

Plottr lists Plottr at $60 a year or $150 lifetime, and Plottr Pro at $9.99 a month, $99 a year, or $599 lifetime, with a Pro plus Community tier above that. It mentions a 30-day free trial, desktop apps for Windows and Mac, and a browser app on Pro. The page notes that subscriptions auto-renew and that no refunds are given after purchase, so read the terms before you buy. Export formats are not shown.

Sudowrite

Sudowrite is an AI writing tool for fiction. Its page lists monthly plans of $10, $22, and $44 measured in credits, a free trial button with no credit card required but no trial length shown, and statements that it claims no rights over what you put in or what it generates and does not use your writing to train its own or OpenAI’s models. Export formats are not shown. Because KDP asks you to disclose AI-generated text, read the KDP section below before you publish anything it produces.

AI Assistants for Authors: Claude and ChatGPT

General AI assistants are not book-writing apps, but many authors use them for brainstorming, outlines, and editing passes. Claude shows a Free plan at $0 with limited usage, a Pro plan at $17 a month on annual billing (billed as $200 up front) or $20 billed monthly, and a Max plan at $100 a month, with the page giving no exact usage numbers and showing a plain “$” without a currency code.

ChatGPT lists Free, Go, Plus, and Pro plans on its pricing page, but the page I loaded did not show dollar amounts for them, so check the page for current prices. It says Free includes limited uploads, and that Projects are available on the plans listed.

I would not publish raw AI output as a book. If you use these tools, treat them as an assistant, keep your own voice, and follow KDP’s disclosure rules in the next section. For deeper tool comparisons, see my guide to the best AI writers.

KDP Formatting and AI Disclosure: What Amazon’s Help Pages Say

If you plan to publish through Amazon, the official KDP help pages matter more than any software review. These are the points I confirmed on the pages I loaded in November 2026, and you should recheck them before you upload because KDP updates its rules.

Ebook manuscript formats

The KDP page on ebook manuscript formats lists DOC and DOCX (complex formatting may not convert well), Kindle Package Format made with Kindle Create (presented as a format that avoids most formatting issues), EPUB that meets the Kindle Publishing Guidelines (validate it with Kindle Previewer), and several others including HTML, RTF, plain text, and PDF for a limited list of languages. It also says that since March 2025 KDP no longer accepts MOBI for fixed-layout ebooks.

Paperback and hardcover files

The KDP page on saving your manuscript says a book with bleed must be uploaded as a PDF, while a book without bleed can be a PDF, DOC, DOCX, RTF, HTML, or TXT that KDP converts. It recommends converting to PDF for the best results, using PDF/X-1a if possible, embedding fonts, using images at 300 DPI or higher, and opening the finished PDF to check it.

The trim size, bleed and margins page shows bleed of 0.125 inch on the top, bottom, and outside edges, and minimum outside, top, and bottom margins of 0.25 inch without bleed or 0.375 inch with bleed. The inside margin grows with page count, from 0.375 inch for 24 to 150 pages to 0.875 inch for 701 to 828 pages. Atticus and Vellum both list print-ready output, but always preview the final PDF against these numbers.

AI disclosure

The KDP content guidelines say you must tell KDP when a new book includes AI-generated text, images, or translations, and that this still applies if you edited the output heavily. The same page says AI-assisted content, where you wrote the work and used AI to edit, refine, or brainstorm, does not need to be disclosed. It also says you remain responsible for checking that everything meets the guidelines, including intellectual property rights. This is not legal advice; read the page itself for the current wording.

How Book Writing Software Fits a Store or Brand

A book does not have to be a bestseller to earn its keep. For a store owner, a short ebook can be a lead magnet that collects emails, a buyer guide that answers pre-sale questions, or a paid info product sold on your own site. If you sell expensive products, a clear guide that explains how to choose, what to avoid, and what the process looks like builds the trust that high-ticket dropshipping depends on.

Pick the topic the same way you pick a product. My high-ticket niches list is a useful place to look for subjects where buyers research before they spend. The process of finding suppliers gives you the raw material for a “what to ask a supplier” guide. Spec sheets, shipping timelines, and warranty questions turn into chapters quickly.

For the tool choice, a one-page lead magnet needs only Google Docs or Word plus a PDF export. A 60-page guide you will sell is worth a formatter such as Atticus, Vellum, or Reedsy Studio. For the cover, a design tool like Canva works, since its book cover page describes the cover maker as free, though export file types are not shown there. If you want to compare layout tools beyond these, my InDesign alternatives guide covers page layout in more depth.

If books become real income, treat them like a business. Keep expenses separate, and see my guide to business formation for high-ticket dropshipping for the structure questions that apply to any online seller. Check with a qualified tax or legal professional for your own situation.

How to Choose Book Writing Software

Start with the job. If you need to draft, you want an editor with structure (Scrivener, Dabble, Novelcrafter). If you need to format, you want Atticus, Vellum, or Reedsy Studio. If you need to collaborate with an editor, Word and Google Docs are the safest bridge. Many authors use two tools: one to write, one to format.

Then check platform fit. Vellum needs a Mac and Ulysses runs on Apple devices, while Atticus lists Windows, Mac, Linux, and Chromebook, and Reedsy Studio and Google Docs run in a browser. Next, compare billing models. Atticus lists a one-time payment, Dabble and Plottr list lifetime options, Novelcrafter and Ulysses list subscription pricing, and Scrivener’s and Vellum’s billing basis is not stated on the pages I loaded.

Finally, test with a real chapter. Most of these tools have a trial, a free tier, or a free download, so import a chapter from your own manuscript, export an EPUB, and open it in Kindle Previewer before you pay.

Which to Pick If…

If you have never written a book and do not want to spend money yet, start with Reedsy Studio or Google Docs. If your book has dozens of chapters, research notes, and rewrites, a Scrivener trial is the place to begin. If you are on Windows and want a one-time purchase for formatting, Atticus is the match among the options I covered.

If you own a Mac and care most about how the finished interior looks, add Vellum. If you work with an editor who sends tracked changes in DOCX, keep Word in the loop. If you write fiction and want daily goals, try Dabble, and if you manage a series with many characters, try Novelcrafter.

If you are exploring the genre you want to write in, reading widely helps, and a Kindle Unlimited membership is one way to do it. My guide to the best Kindle Unlimited books may help you choose what to read first.

Mistakes to Avoid

The first mistake is formatting inside a word processor with tabs, spaces, and manual page breaks. Use real heading styles so your formatting tool can build a table of contents. The second is uploading without a preview; the KDP pages point to Kindle Previewer for exactly this reason.

The third is paying for a tool before you know what you need. Free tiers and trials exist, and Reedsy Studio is free for core features on the page I loaded. The fourth is ignoring AI rules; if any text, image, or translation in your book was generated by AI, KDP says you must disclose it. The fifth is forgetting the business side: a book that supports a store needs a place to be sold or delivered, which is why I wrote about Payhip alternatives for digital sellers.

Frequently Asked Questions

What is the best software for writing a book?
There is no single best. As of November 2026, Scrivener suits long, research-heavy manuscripts, Atticus and Vellum focus on formatting, Reedsy Studio is free for core tools, and Word and Google Docs are best for sharing with editors. This is my opinion based on published pages, so test one chapter before you commit.

Is there free book writing software?
Yes. Reedsy Studio’s page lists its writing editor, formatting, EPUB and PDF export, and collaboration as free, and Google Docs is available to anyone with a Google Account. Word on the web is also free on Microsoft’s page. Optional paid add-ons and limits can change, so check each page.

Do I need special software to format a book for Kindle?
Not necessarily. KDP’s help page lists DOCX, EPUB, and Kindle Package Format among accepted ebook files, and it recommends checking your file in Kindle Previewer. Tools like Atticus, Vellum, and Reedsy Studio can make layout easier, but they are not required.

Do I have to tell Amazon if I use AI to write my book?
KDP’s content guidelines say you must tell KDP when a new book includes AI-generated text, images, or translations, even if you edited them. They say AI-assisted use, such as editing or brainstorming on content you wrote yourself, does not need disclosure. Read the current page and consider legal advice for your situation.

Is Vellum or Atticus better?
It depends on your computer and budget. Vellum is Mac only and lists $199.99 for ebooks or $249.99 with paperbacks, while Atticus lists $147 as a one-time payment and supports Windows, Mac, Linux, and Chromebook. Both list print-ready or EPUB output, so compare a sample export from each.

Related Articles

If you found this useful, these guides cover reading, books, and selling digital products:

• Best Kindle Unlimited Books in 2026: What to Read and Whether It Is Worth It
• Best Ecommerce Books to Build and Scale Your Online Business in 2026
• Kindle Unlimited Pricing: Cost, Family Sharing, and Trial Terms (2026)
• Best AI Writers in 2026: Top AI Writing Tools for Every Use Case
• Gumroad Alternatives: 5 Platforms Compared by Fees for Digital Sellers (2026)