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An indie author has to finish a book, then become its typesetter, metadata specialist, distributor, and marketing department. Writing is still the hard part. But badly formatted interiors, weak Amazon keywords, and a missing email list are what sink otherwise good books.
This guide covers the tools that turn a finished manuscript into a book readers can find. For drafting and editing, see our guide to AI grammar and editing tools. A lot of the comparisons in this space come from tool makers, and we have noted that where it applies. Confirm current prices before buying.
The best self-publishing tools for indie authors
Atticus: cross-platform formatting and writing
Atticus formats ebooks and print interiors and also works as a writing app. It runs in the browser and as an installable app on Windows, Mac, Linux, and Chromebook. It costs $147 as a one-time purchase, includes paperback formatting, and comes with a 30-day return policy. Its feature set includes 17+ chapter themes, a custom theme builder, cloud backup, collaboration, and callout boxes for nonfiction.
Best for: authors on Windows, or anyone who wants to write and format in one tool. Note that much of the Atticus-vs-Vellum coverage comes from Kindlepreneur, whose founder co-founded Atticus.
Vellum: the polished Mac-only formatter
Vellum is known for clean, professional book designs with very little setup. Vellum Ebooks costs $199.99, and Vellum Press, which adds paperbacks, costs $249.99. It is free to download and design in, but you pay to export. It runs only on Mac.
Best for: Mac users who want great-looking books with minimal fiddling.
Reedsy Studio: free formatting
Reedsy Studio is a free browser-based writing and formatting app. It has fewer design options than Vellum or Atticus (Reedsy lists three book styles), but it produces professional ebook and print files at no cost. Reedsy also runs a marketplace for hiring editors and cover designers.
Best for: first-time authors who want to publish before spending money on software.
Publisher Rocket: Amazon keyword and category research
Publisher Rocket helps you find the search terms readers use on Amazon, judge how competitive they are, fill your seven KDP keyword slots, choose categories, and estimate what competing books earn. It is listed at $199 as a one-time purchase with free updates, though the sales page notes it could move to a subscription.
Best for: authors publishing more than one book on Amazon.
Draft2Digital: distribute beyond Amazon
Draft2Digital distributes your ebook to Apple Books, Kobo, Barnes & Noble, libraries, and other stores from one upload. In April 2026 it announced a one-time $20 activation fee for new accounts and a $12 annual maintenance fee, waived if your net royalties over the past 12 months reach $100 or more. Formatting and previewing stay free.
Best for: authors going “wide” instead of enrolling in KDP Select.
Using AI in your publishing workflow
AI assistants are useful for blurbs, ad copy variations, and brainstorming keywords before you check them in Publisher Rocket. Amazon KDP asks authors to disclose AI-generated content when publishing, so read its current content guidelines before you upload.
Which one should you choose?
- Mac user who wants the best-looking books: Vellum.
- Windows or Chromebook user: Atticus.
- Zero budget: Reedsy Studio.
- Serious about Amazon discovery: add Publisher Rocket.
- Selling everywhere: Draft2Digital.
Many authors also sell ebooks, workbooks, or bundles directly to readers. Our guide to digital product platforms compares the fees.
Your email list is the one marketing channel no retailer controls. Kit is popular with authors for reader magnets and launch sequences, and Beehiiv is a strong choice for a regular reader newsletter. Beehiiv also powers The Solo Stack, our weekly tools roundup for one-person businesses.
Frequently asked questions
Is Atticus or Vellum better?
Vellum has more refined designs but runs only on Mac and costs more. Atticus is cheaper, cross-platform, and adds writing and collaboration features.
Can I format a book for free?
Yes. Reedsy Studio is free. Vellum is also free to try, but you pay to export.
Is Publisher Rocket a subscription?
It is currently sold as a one-time purchase, though its sales page says that could change.
What did Draft2Digital change in 2026?
New accounts pay a one-time $20 activation fee, and all accounts pay a $12 annual fee unless they earned at least $100 in net royalties over the prior 12 months.
Do I have to disclose AI use on Amazon KDP?
KDP asks about AI-generated content during publishing. Check its current guidelines for the exact rules.