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 2026-10-15. 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 October 15, 2026: kdpbook.io and KDP Builder document all three for most book types; ebookDONE and AIWriteBook (on Pro) for text books. BookAutoAI does non-fiction and cookbooks; KDPEasy and Librava, covers and low-content interiors; LowContent.ai, images. BookWriter, Squibler, Sudowrite and Inkfluence AI write; Canva designs; Book Bolt researches.
By kdpbook.io editorialUpdated
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 billed yearly (Starter, 250 credits); $19 billed monthly | 75 credits once (email verified, valid 14 days), no card |
| BookAutoAI | Editable manuscript, formatted paperback interior, reflowable EPUB 3, cover concepts | “Upload-ready paperback” files; its Kindle Create comparison describes the interior as an editable formatted DOCX to review before upload | Yes: reflowable EPUB 3 (no KPF) | Cover concepts; paid plans prepare a front, spine and back paperback wrap | $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 |
| Librava, formerly 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-wrap cover creator: front, spine and back in one 300 DPI PDF, spine sized from page count and paper | $122/year (Basic, billed yearly) | 2-day free trial on every plan (plan cards and 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 | A cover agent (its docs list it among the agents); full-wrap sizing (back cover, spine) not documented | €39/month (Basic); €390/year billed yearly | 2-day trial; its docs say a card is required |
| BookWriter, text 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 |
| Squibler, text first | Full-length manuscript; PDF, Word or ePub export; AI cover art; printed softcover or hardback copies on Plus (per its help center) | Its software page says exports are ready for Amazon KDP; trim sizes, margins and bleed not documented | ePub export (fixed layout not documented) | AI cover art (full-wrap sizing not documented) | $15.83/month billed yearly (Plus, 10,000 credits); $29.99 monthly | 1,000 AI credits, no time limit (a month per its plan card, a one-time trial per its help center) |
| Book Bolt, research and design | Print PDFs of the covers and interiors you design or generate in its Studio; research data | Yes: Studio PDFs at 300 DPI, with trim, bleed, margins and spine width from your page count | Not documented | Designed by you in Book Bolt Studio, sized to trim, bleed and spine | $19.99/month billed yearly (Pro, 1,000 AI credits), $23.99 monthly; Premium $29.99/month billed yearly | 3-day free trial, real exports included |
| Sudowrite, writing only | Your manuscript, exported as .docx (or a .zip of documents) | Not documented: format the print interior elsewhere | Not documented | Not documented | $10/month billed yearly (Hobby & Student, 225,000 credits); $19 monthly | Free trial: 10,000 credits, no card |
| Canva, design 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 |
| ebookDONE, pay per book | 6 × 9 print interior PDF, full-wrap cover, Kindle EPUB, Word DOCX, ebook PDF and a KDP listing pack with AI-disclosure answers | Yes: a 6 × 9 in interior PDF with KDP margins, gutter and page numbers; other trims not documented | Yes: Kindle EPUB | Full-wrap cover with the spine width computed from the page count | $9 per standard book, $19 per full-length novel, paid once (no subscription) | A free preview of your book (the outline and first chapter, or your manuscript typeset), no card |
| Inkfluence AI, ebooks and guides | PDF on the free plan; EPUB and DOCX on paid plans; audiobooks; picture-book illustrations on paid plans (20 or 50 AI images a month) | A PDF export with a KDP interior mode whose gutter widens with the page count; its FAQ asks you to check trim, margins and bleed against your KDP settings | Yes: EPUB export on Creator and Premium | Cover designer (templates, AI art or your own image); a full-wrap print cover is not documented | $9.99/month (Creator, 35 chapters a month), or $89 billed yearly | 5 chapters to start plus 5 a month, PDF export only, no card |
| AIWriteBook, writing first | Your manuscript (DOCX on Plus); on Pro, its formatter adds a print PDF interior, a wrap cover, an EPUB and an ebook cover | On Pro: a print-ready PDF interior at the trim you choose, with margins, gutter and bleed set and a preflight check | EPUB from its formatter (Pro) | Cover Maker on Plus; a wrap cover with the spine and barcode area from the page count in its formatter (Pro) | $12/month billed yearly (Plus, 1,000 credits), $20 monthly; the formatter is on Pro ($30/month billed yearly, $50 monthly) | 100 credits (about 12 pages): the builders, manuscript import and a first chapter |
Each tool in detail
An AI book studio for Amazon KDP: you describe a book in a chat (or import your manuscript, for 20 of the 36 book types) and it plans, writes, illustrates and typesets it, then builds the files KDP asks for. 36 book types in 8 families, 61 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). A fixed-layout eBook and a 3D preview are not documented.
- Paid from
- $16/month billed yearly (Starter, 250 credits); $19 billed monthly
- 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” (its blog says they lower AI-detection flags); 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)
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
- 2-day free trial on every plan (plan cards and 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
An AI book and screenplay writer: it drafts a book in chapters and scenes from a prompt, then a full-length manuscript on paid plans, with Elements for characters and settings, a Smart Writer for revisions, and images or short videos from highlighted passages.
- Best for
- A full-length text draft (novel, non-fiction, memoir or screenplay) that you rewrite and shape yourself
- Limits
- Credits don't map to words: its help center puts Plus's 10,000 credits at a few thousand to tens of thousands of AI words a month. Picture-book, coloring and puzzle layouts are not documented.
- Paid from
- $15.83/month billed yearly (Plus, 10,000 credits); $29.99 monthly
- Free to try
- 1,000 AI credits, no time limit (a month per its plan card, a one-time trial per its help center)
Read on Squibler pricing (opens in a new tab), Squibler book writing software (export formats) (opens in a new tab), Squibler help: What plans are available? (opens in a new tab), Squibler help: Is there a free trial? (opens in a new tab), Squibler help: What are credits? (opens in a new tab), Squibler home page and FAQ (cover art, images and video) (opens in a new tab) on .
A KDP research and design suite: keyword and product research with Amazon search volume, the Book Bolt Studio cover and interior designer, generators for puzzle books, coloring books and AI-illustrated story books, 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 Studio generates puzzle, coloring and story books that you finish in its designer; a Kindle eBook file is not documented.
- Paid from
- $19.99/month billed yearly (Pro, 1,000 AI credits), $23.99 monthly; Premium $29.99/month billed yearly
- Free to try
- 3-day free trial, real exports included
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 billed yearly (Hobby & Student, 225,000 credits); $19 monthly
- Free to try
- Free trial: 10,000 credits, 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
A pay-per-book service for KDP: give it a .docx, .md or .txt manuscript, a rough draft or one sentence, and it typesets what you wrote, writes what you didn't, and returns the print, ebook and listing files.
- Best for
- One text book at a time, from a manuscript or an idea, paid per book
- Limits
- One trim is documented (6 × 9 in). Picture books, coloring and puzzle books are not documented. Uploaded manuscripts use the standard price.
- Paid from
- $9 per standard book, $19 per full-length novel, paid once (no subscription)
- Free to try
- A free preview of your book (the outline and first chapter, or your manuscript typeset), no card
Read on ebookDONE home page and FAQ (opens in a new tab) on .
An AI ebook and book writer: it outlines and drafts non-fiction, novels, workbooks and illustrated picture books chapter by chapter, with a cover designer, audiobook narration, translation into 59 languages and one-click listing on Etsy and Gumroad.
- Best for
- Ebooks, guides and lead magnets sold on KDP, Etsy and Gumroad, with an audiobook from the same text
- Limits
- EPUB, DOCX and picture-book illustrations need a paid plan. Its pricing page says subscriptions are non-refundable once the service has been used.
- Paid from
- $9.99/month (Creator, 35 chapters a month), or $89 billed yearly
- Free to try
- 5 chapters to start plus 5 a month, PDF export only, no card
An AI book-writing app: character, outline and writing-style builders, chapter writing in 38 languages, manuscript import and a book editor that writes an editorial letter and line edits; on Pro, a formatter, audiobooks, translation and visual books (picture books, coloring books, comics) with a reference sheet per character.
- Best for
- Writing a novel or non-fiction book chapter by chapter in your own voice, then formatting it for print and ebook stores
- Limits
- Print and EPUB formatting is listed on Pro, not Plus. One-time credit packs ($20 or $50) unlock Plus features and expire after 3 months.
- Paid from
- $12/month billed yearly (Plus, 1,000 credits), $20 monthly; the formatter is on Pro ($30/month billed yearly, $50 monthly)
- Free to try
- 100 credits (about 12 pages): the builders, manuscript import and a first chapter
How we checked
- We opened each tool's own home, pricing and help pages on 2026-10-15 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) come from KDP Help pages, linked under Sources.
- Left out: Reedsy Studio, because its pages list no AI tools: it's a free app to write and typeset a book you wrote yourself (EPUB and print PDF). See kdpbook.io vs Reedsy Studio.
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+. ebookDONE delivers the same three files for a text book at 6 × 9 in, for $9 a book ($19 for a full-length novel), and AIWriteBook's formatter does on its Pro plan. BookAutoAI delivers a formatted paperback interior (a DOCX, per its Kindle Create comparison), a paperback cover wrap on paid plans and an EPUB for non-fiction and cookbooks.
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, Squibler 1,000, AIWriteBook 100 (about 12 pages), BookWriter and ebookDONE a free first chapter or preview, Inkfluence AI 5 chapters plus 5 a month (PDF only), and Canva has a free plan.
Which tools write novels for KDP?
Sudowrite and AIWriteBook help you write it yourself, chapter by chapter. BookWriter drafts a whole manuscript from an outline you approve (from $9.99 per book up to 70,000 words on its pricing page), ebookDONE writes and formats a full-length novel for $19, and Squibler generates a full-length draft on its Plus plan ($15.83/month billed yearly). 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 October 15, 2026
- KDP Builder pricing (opens in a new tab)
- KDP Builder home page (opens in a new tab)
- KDP Builder children's book creator (opens in a new tab)
- BookAutoAI home page and plans (opens in a new tab)
- BookAutoAI vs Kindle Create (opens in a new tab)
- BookAutoAI blog: AI Book Writer for Amazon (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)
- Squibler pricing (opens in a new tab)
- Squibler book writing software (export formats) (opens in a new tab)
- Squibler help: What plans are available? (opens in a new tab)
- Squibler help: Is there a free trial? (opens in a new tab)
- Squibler help: What are credits? (opens in a new tab)
- Squibler home page and FAQ (cover art, images and video) (opens in a new tab)
- Book Bolt pricing (opens in a new tab)
- Book Bolt Studio (opens in a new tab)
- Book Bolt home page (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)
- Sudowrite blog: What does it really cost to write a novel with AI in 2026? (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)
- ebookDONE home page and FAQ (opens in a new tab)
- Inkfluence AI pricing (opens in a new tab)
- Inkfluence AI home page (opens in a new tab)
- Inkfluence AI for Kindle publishers (opens in a new tab)
- AIWriteBook pricing (opens in a new tab)
- AIWriteBook home page (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