AI book generators for Amazon KDP (2026): what each one actually outputs
We make kdpbook.io, so it is listed first; every other entry is described from its own public pages, checked 2026-09-28. Prices and features may have changed since; each entry links to the pages we read.
Which AI tools produce the files Amazon KDP asks for: a laid-out interior PDF, a full-wrap cover PDF and a Kindle eBook? Checked on September 28, 2026: kdpbook.io and KDP Builder document all three for most book types. BookAutoAI handles non-fiction and cookbooks; KDPEasy and Librava, covers and low-content interiors. BookWriter and Sudowrite write, Canva designs, Book Bolt researches.
By kdpbook.io editorialPublished
At a glance
| Tool | What you get | KDP print files | Kindle eBook | Cover | Paid from | Free to try |
|---|---|---|---|---|---|---|
| kdpbook.io | Laid-out interior PDF, full-wrap cover PDF, Kindle EPUB + Kindle cover, listing sheet (title, description, 7 keywords, categories) | Yes: trim, bleed, margins and spine applied by code, with a preflight check (16 paperback and 5 hardcover trims) | Yes: EPUB, reflowable or fixed layout (coloring, puzzle, activity and journal types are print only) | Full-wrap paperback or hardcover cover sized from the final page count, plus a Kindle cover | $25/month (Starter, 2,500 credits) | 2,000 credits once, no card (enough for a 32-page picture book); exports watermarked, not for sale |
| KDP Builder | Interior PDF, paperback cover wrap PDF, ebook cover, EPUB and DOCX, plus a description, 7 keywords, BISAC categories and an upload checklist | Yes: print-ready interior PDF and cover wrap with spine | Yes: EPUB (listed among its outputs on the pricing page) | Paperback wrap with spine, hardcover and ebook covers, text-free cover art | $16/month (Starter, 250 credits) | 75 credits once (email verified, valid 14 days), no card |
| BookAutoAI | Editable manuscript, upload-ready paperback files and EPUB, cover | Yes: “upload-ready paperback” files | Yes: EPUB | Cover generator (full-wrap sizing not documented) | $12/month (Shoestring, ≈ 50,000 manuscript words) | A book plan + 1,000 writing credits (about five 1,000-word chapters) |
| KDPEasy | Full-wrap cover PDFs, designed interiors (journals, planners, coloring, puzzles), listing text | Yes: 300 DPI print PDFs with embedded fonts; spine, bleed and barcode area worked out | Kindle eBook covers; an EPUB interior is not documented | Full-wrap cover for KDP's 16 trim sizes; paperback, hardcover and Kindle | $19/month (Starter: 35 credits, 7 covers) | 10 credits once (about two covers), no card, watermarked |
| Libravaformerly BooksGenie | Interior pages and puzzle sets as 300 DPI PDFs; covers with front, back and spine | Yes: 300 DPI print-ready PDFs (the Basic plan exports PNG only) | Not documented | Full cover creator: 4 designs with front, back and spine | $122/year (Basic, billed yearly) | Free trial (3 days on its plan cards, 2 days in its FAQ) |
| LowContent.ai | Individual images and texts | Its home page says content is formatted for KDP; a book-assembly or PDF export step is not documented | Not documented | Not documented | €39/month (Basic); €390/year billed yearly | 2-day trial; its docs say a card is required |
| BookWritertext first | Complete manuscript up to 70,000 words; EPUB, PDF, DOCX or Markdown export | “KDP-ready files”; print trim and cover-wrap details not documented | Yes: EPUB export | Cover included (full-wrap sizing not documented) | From $9.99 per book up to 70,000 words (its pricing page); Steering Wheel Mode $17/month | Title, cover and Chapter 1, no card |
| Book Boltresearch and design | Covers and interiors you design in its Studio; puzzle pages; research data | Cover and interior designer (you build the pages) | Not documented | Designed by you in Book Bolt Studio | $19.99/month billed yearly (Pro, 1,000 AI credits); Premium $29.99/month billed yearly | 3-day free trial |
| Sudowritewriting only | Your manuscript, exported as .docx (or a .zip of documents) | Not documented: format the print interior elsewhere | Not documented | Not documented | $10/month (Hobby & Student) | Free trial, no card |
| Canvadesign only | Designs you build page by page, downloaded as PDF Print | PDF Print with a fixed 0.125 in bleed and optional crop marks; KDP spine and cover-wrap sizing not documented | Not documented | Designed by you from templates | Pro US$144/year | Free plan; Pro has a free trial |
kdpbook.io
- What you get
- Laid-out interior PDF, full-wrap cover PDF, Kindle EPUB + Kindle cover, listing sheet (title, description, 7 keywords, categories)
- KDP print files
- Yes: trim, bleed, margins and spine applied by code, with a preflight check (16 paperback and 5 hardcover trims)
- Kindle eBook
- Yes: EPUB, reflowable or fixed layout (coloring, puzzle, activity and journal types are print only)
- Cover
- Full-wrap paperback or hardcover cover sized from the final page count, plus a Kindle cover
- Paid from
- $25/month (Starter, 2,500 credits)
- Free to try
- 2,000 credits once, no card (enough for a 32-page picture book); exports watermarked, not for sale
KDP Builder
- What you get
- Interior PDF, paperback cover wrap PDF, ebook cover, EPUB and DOCX, plus a description, 7 keywords, BISAC categories and an upload checklist
- KDP print files
- Yes: print-ready interior PDF and cover wrap with spine
- Kindle eBook
- Yes: EPUB (listed among its outputs on the pricing page)
- Cover
- Paperback wrap with spine, hardcover and ebook covers, text-free cover art
- Paid from
- $16/month (Starter, 250 credits)
- Free to try
- 75 credits once (email verified, valid 14 days), no card
BookAutoAI
- What you get
- Editable manuscript, upload-ready paperback files and EPUB, cover
- KDP print files
- Yes: “upload-ready paperback” files
- Kindle eBook
- Yes: EPUB
- Cover
- Cover generator (full-wrap sizing not documented)
- Paid from
- $12/month (Shoestring, ≈ 50,000 manuscript words)
- Free to try
- A book plan + 1,000 writing credits (about five 1,000-word chapters)
KDPEasy
- What you get
- Full-wrap cover PDFs, designed interiors (journals, planners, coloring, puzzles), listing text
- KDP print files
- Yes: 300 DPI print PDFs with embedded fonts; spine, bleed and barcode area worked out
- Kindle eBook
- Kindle eBook covers; an EPUB interior is not documented
- Cover
- Full-wrap cover for KDP's 16 trim sizes; paperback, hardcover and Kindle
- Paid from
- $19/month (Starter: 35 credits, 7 covers)
- Free to try
- 10 credits once (about two covers), no card, watermarked
Libravaformerly BooksGenie
- What you get
- Interior pages and puzzle sets as 300 DPI PDFs; covers with front, back and spine
- KDP print files
- Yes: 300 DPI print-ready PDFs (the Basic plan exports PNG only)
- Kindle eBook
- Not documented
- Cover
- Full cover creator: 4 designs with front, back and spine
- Paid from
- $122/year (Basic, billed yearly)
- Free to try
- Free trial (3 days on its plan cards, 2 days in its FAQ)
LowContent.ai
- What you get
- Individual images and texts
- KDP print files
- Its home page says content is formatted for KDP; a book-assembly or PDF export step is not documented
- Kindle eBook
- Not documented
- Cover
- Not documented
- Paid from
- €39/month (Basic); €390/year billed yearly
- Free to try
- 2-day trial; its docs say a card is required
BookWritertext first
- What you get
- Complete manuscript up to 70,000 words; EPUB, PDF, DOCX or Markdown export
- KDP print files
- “KDP-ready files”; print trim and cover-wrap details not documented
- Kindle eBook
- Yes: EPUB export
- Cover
- Cover included (full-wrap sizing not documented)
- Paid from
- From $9.99 per book up to 70,000 words (its pricing page); Steering Wheel Mode $17/month
- Free to try
- Title, cover and Chapter 1, no card
Book Boltresearch and design
- What you get
- Covers and interiors you design in its Studio; puzzle pages; research data
- KDP print files
- Cover and interior designer (you build the pages)
- Kindle eBook
- Not documented
- Cover
- Designed by you in Book Bolt Studio
- Paid from
- $19.99/month billed yearly (Pro, 1,000 AI credits); Premium $29.99/month billed yearly
- Free to try
- 3-day free trial
Sudowritewriting only
- What you get
- Your manuscript, exported as .docx (or a .zip of documents)
- KDP print files
- Not documented: format the print interior elsewhere
- Kindle eBook
- Not documented
- Cover
- Not documented
- Paid from
- $10/month (Hobby & Student)
- Free to try
- Free trial, no card
Canvadesign only
- What you get
- Designs you build page by page, downloaded as PDF Print
- KDP print files
- PDF Print with a fixed 0.125 in bleed and optional crop marks; KDP spine and cover-wrap sizing not documented
- Kindle eBook
- Not documented
- Cover
- Designed by you from templates
- Paid from
- Pro US$144/year
- Free to try
- Free plan; Pro has a free trial
Each tool in detail
- 01
kdpbook.io
Made by usAn AI book studio for Amazon KDP: you describe a book in a chat (or import your manuscript) and it plans, writes, illustrates and typesets it, then builds the files KDP asks for. 36 book types in 8 families, 40 illustration styles, 34 KDP languages.
- Best for
- A finished, upload-ready book from one description, across picture books, coloring and puzzle books, journals, novels, non-fiction and comics
- Limits
- No keyword or niche research. Free-plan books are watermarked, not for sale and public in the community library. You still answer KDP's AI-disclosure questions.
- Paid from
- $25/month (Starter, 2,500 credits)
- Free to try
- 2,000 credits once, no card (enough for a 32-page picture book); exports watermarked, not for sale
Numbers from our product code, the same as on kdpbook.io pricing and kdpbook.io llms.txt.
An all-in-one AI builder for KDP with 18+ book types (non-fiction, novels, children's books, puzzles, coloring books, planners, cookbooks, memoirs, workbooks), a guided chapter-by-chapter flow, an interior studio and 161 designer cover templates.
- Best for
- A template-driven workflow that also hands you DOCX files and keywords
- Limits
- Credits per book vary widely by type (its pricing page lists 125–450 for a novel, 250–350 for a children's book). How characters stay consistent in illustrated books is not documented.
- Paid from
- $16/month (Starter, 250 credits)
- Free to try
- 75 credits once (email verified, valid 14 days), no card
An AI studio for non-fiction manuscripts (25,000+ words) and full-picture cookbooks (100+ recipes with photos), with interior formatting, a cover generator and a sales page for each book.
- Best for
- Non-fiction books and photo cookbooks
- Limits
- Children's, coloring and puzzle books are not documented. Its plans include “humanizing tools”; KDP still requires you to disclose AI-generated text. First-subscription refunds within 30 days deduct used credits and a 15% fee.
- Paid from
- $12/month (Shoestring, ≈ 50,000 manuscript words)
- Free to try
- A book plan + 1,000 writing credits (about five 1,000-word chapters)
Read on BookAutoAI home page and plans (opens in a new tab) on .
A cover-first KDP studio: an AI cover generator (12 art styles, 12 moods), Book Studio with 205 editable page layouts for journals, planners and activity books, a coloring book creator (six line-art styles, up to 100 pages), puzzle creators, keyword research, a Chrome extension that saves KDP drafts, and free calculators.
- Best for
- Covers, and low-content interiors you design from layouts
- Limits
- Writing a narrative book (novel, picture-book story) is not documented: you bring your own manuscript. One cover costs 5 credits.
- Paid from
- $19/month (Starter: 35 credits, 7 covers)
- Free to try
- 10 credits once (about two covers), no card, watermarked
A low-content suite with makers for coloring books, activity coloring books, journals and planners, illustrated children's stories, full-wrap covers and custom interiors, plus a long list of puzzle generators (sudoku, kakuro, word search, crossword, criss-cross, cryptogram, numberlink, drop quote, hashi, mazes).
- Best for
- Puzzle and activity books, with many puzzle types in one place
- Limits
- Novels, non-fiction and Kindle files are not documented. Pro caps vector 300 DPI book exports at 10 a day.
- Paid from
- $122/year (Basic, billed yearly)
- Free to try
- Free trial (3 days on its plan cards, 2 days in its FAQ)
A set of AI agents (text, image and coloring-style agents such as Bold & Easy, Kawaii and Mandala) that generate images and text for low-content books such as journals, planners and coloring books, with image parameters such as aspect ratio, stylize and a character reference.
- Best for
- Generating coloring images and texts in bulk when you already lay out books yourself
- Limits
- Usage is counted in tokens: its terms put one image at 200,000 tokens. Paid users own what they generate (its terms).
- Paid from
- €39/month (Basic); €390/year billed yearly
- Free to try
- 2-day trial; its docs say a card is required
An AI long-form writer: you approve a chapter-by-chapter outline, then its Co-Writer drafts, checks and polishes each chapter. Each manuscript ships with an authorship report meant for KDP's AI-content questions.
- Best for
- Long novels written from an outline you approve
- Limits
- Illustrated, coloring and puzzle books are not documented. Its llms.txt gives $19.99 per book while its pricing page says from $9.99: check before you buy.
- Paid from
- From $9.99 per book up to 70,000 words (its pricing page); Steering Wheel Mode $17/month
- Free to try
- Title, cover and Chapter 1, no card
A KDP research and design suite: keyword and product research with Amazon search volume, the Book Bolt Studio cover and interior designer, puzzle, crossword and sudoku creators, and the KDP Spy browser extension.
- Best for
- Niche and keyword research, plus hands-on cover and interior design
- Limits
- Research is its core. Its home page says it can generate story, puzzle and coloring books and journals, built in its template-based Studio; a Kindle eBook file is not documented.
- Paid from
- $19.99/month billed yearly (Pro, 1,000 AI credits); Premium $29.99/month billed yearly
- Free to try
- 3-day free trial
An AI writing partner for fiction authors: Story Bible takes you from idea to outline to chapters, with Write and Describe tools that draft in your style.
- Best for
- Writing fiction yourself with AI help, in your own voice
- Limits
- Writing only: you still need a formatter and a cover designer before KDP.
- Paid from
- $10/month (Hobby & Student)
- Free to try
- Free trial, no card
A general design tool with templates, stock media and AI tools. Self-publishers use it to design covers and simple low-content interiors by hand.
- Best for
- Designing covers and simple interiors by hand
- Limits
- Design only: writing and assembling a complete book are not part of it.
- Paid from
- Pro US$144/year
- Free to try
- Free plan; Pro has a free trial
How we checked
- We opened each tool's own home, pricing and help pages on 2026-09-28 and recorded only what they state. Every page we read is linked under its entry.
- “Not documented” means we could not find it on those pages, not that the tool can't do it.
- We did not buy plans or generate test books in the other tools, so this page doesn't rate output quality. Try two or three on the same idea before you choose.
- Prices are as displayed on that date, before tax. They change often: check the tool's own page before you pay.
- kdpbook.io's numbers come from our own product code, the same source as our pricing page and llms.txt.
- The KDP rules quoted here (AI disclosure and, on the children's roundup, trim sizes, bleed and fixed-layout eBooks) come from KDP Help pages, linked under Sources.
Questions
Which AI tool makes a complete KDP book instead of parts?
On their own pages, kdpbook.io and KDP Builder both deliver an interior PDF, a cover wrap PDF and an EPUB for many book types: kdpbook.io covers 36 book types, KDP Builder lists 18+. BookAutoAI delivers paperback files and an EPUB for non-fiction and cookbooks; its cover-wrap sizing isn't documented.
Do I have to disclose AI use when I publish on KDP?
Yes, for AI-generated content. KDP asks you to tell it about AI-generated text, images or translations when you publish or republish a book, whichever tool made them. Using AI only to edit, check or brainstorm your own writing doesn't need to be declared.
Will KDP accept a book made with these tools?
No tool can promise that. KDP reviews every title against its content guidelines and file specifications; a preflight check catches file problems, not content decisions. Order a proof copy before you publish.
Is there a free AI book generator for KDP?
Several have a free start: kdpbook.io gives 2,000 credits once (enough for a 32-page picture book), but free-plan books are watermarked and not for sale; KDP Builder gives 75 credits, KDPEasy 10, BookWriter a free first chapter, and Canva has a free plan.
Which tools write novels for KDP?
Sudowrite helps you write it yourself. BookWriter drafts a whole manuscript from an outline you approve (from $9.99 per book up to 70,000 words on its pricing page). kdpbook.io writes and typesets it too: a 336-page novel is estimated at about 5,377 credits, including the print interior, cover and Kindle file.
Is there a “Lovable for books”?
That's how we describe kdpbook.io (it has no affiliation with Lovable): as vibe-coding tools turn a description into a working app, kdpbook.io turns a description in a chat into a finished KDP book: its interior PDF, full-wrap cover and, for book types that suit Kindle, an EPUB. We call it vibe publishing.
Sources · read on September 28, 2026
- KDP Builder pricing (opens in a new tab)
- KDP Builder home page (opens in a new tab)
- BookAutoAI home page and plans (opens in a new tab)
- KDPEasy home page (opens in a new tab)
- KDPEasy plans (opens in a new tab)
- Librava home page (opens in a new tab)
- Librava pricing (opens in a new tab)
- LowContent.ai home page (opens in a new tab)
- LowContent.ai terms (opens in a new tab)
- LowContent.ai docs: available plans (opens in a new tab)
- LowContent.ai docs: how to use any agent (opens in a new tab)
- LowContent.ai docs: parameter list (opens in a new tab)
- BookWriter home page (opens in a new tab)
- BookWriter pricing (opens in a new tab)
- BookWriter: export your manuscript (opens in a new tab)
- BookWriter KDP AI publishing guide (opens in a new tab)
- BookWriter llms.txt (opens in a new tab)
- Book Bolt pricing (opens in a new tab)
- Sudowrite pricing (opens in a new tab)
- Sudowrite home page (opens in a new tab)
- Sudowrite docs: exporting files (opens in a new tab)
- Canva pricing (US) (opens in a new tab)
- Canva Help: margins, bleed and crop marks (opens in a new tab)
- KDP Help: Content Guidelines (AI-generated content) (opens in a new tab)
Try the first one on your own idea.
Describe a book in one sentence and see its plan and credit estimate before you launch anything.
2,000 free credits · no card required