book written from your idea or notes

A writing desk photographed from above: a manuscript stack, a page marked up in orange, an open printed book, a finished paperback and a phone playing an audiobook, laid out left to right along the desk

Built for Fiction Writers

Write fiction that reads like you wrote it

Your characters, your plot and your prose. The AI proposes chapters written to a sample of your writing and edits you accept or reject, so the finished book is better and still yours.

  • 4.7
  • 511 reviews
  • 20,000+ authors
  • Free to start, no credit card
  • Your voice, not generic AI prose
  • Characters that stay consistent
  • Any genre, one workflow

book written from your idea or notes

  • 20,000+Authors writing with AIWriteBook
  • 27,000+Books created on AIWriteBook
  • 30+Languages to write and translate in
  • 4.7/5Average author rating

What Fiction Writers Need From AI

Help that makes the book better, not a different book.

Keep the voice

Readers come back for how you write. Generic AI prose throws that away.

Keep the cast

Characters need to sound and act like themselves on every page.

Keep control

You decide what happens, and you want to see every change before it lands.

Finish the book

A draft is not a book until it is edited, formatted and in front of readers.

Watch Fiction Written In the Author's Voice

See a chapter written to the author's style and edited change by change.

How Fiction Writers Use AIWriteBook

Four stages, each one built around your voice and your decisions.

1.Write

Write it in your voice

Start from an idea or bring the draft you already have. Add a sample of your writing, shape the outline and characters, then write chapter by chapter. The AI proposes each chapter; you decide what stays.

  • Paste 6 to 10 paragraphs of your own writing and every chapter follows that style
  • Import a Word .docx of up to 200,000 words without a line of it rewritten
  • An outline, characters and chapters you can reorder, edit or rewrite
  • Choose the model for each chapter: Gemini, Claude or Grok
  • Standing instructions for the book, extra instructions for any chapter

2.Edit

Edit without losing yourself

Editing keeps your voice and leaves every decision to you. Ask for a change and see it as a diff, or open the Book Editor step for a genre scorecard, an editorial letter and line edits that go straight into your chapters.

  • Chapter chat shows every change as a diff you accept or reject
  • Book Editor: a genre scorecard, an editorial letter and line edits with proofreading built in
  • Every suggested replacement is accepted or rejected one by one
  • AI proofreader with several fixes to choose from for each issue
  • Edit any line yourself in the editor, whenever you like

3.Format

Format it like a real book

Pick an interior theme, a body font and a trim size in the book formatter, and export a print PDF, an EPUB and a DOCX that look professionally set. Design the cover in the same place.

  • Five interior themes and 12 embedded body fonts
  • Nine trim sizes, with front and back matter built in
  • Print PDF, EPUB and DOCX, with EPUB validation
  • A cover at the 1840 x 2784 KDP ratio, or upload your own
  • An audiobook made from the same manuscript

4.Distribute

Distribute it under your name

Take the files to Amazon KDP or any other store. The KDP extension fills the Details, Content and Pricing pages while you review each one. Share one Author Page link and collect the emails of readers who want your next book.

NanoReads
Distribute on NanoReads

Our reader website + iOS/Android apps

140,000+
registered readers
on NanoReads

Readers who browse your genre on NanoReads can find your book there.

Written by Real Authors with AIWriteBook

Browse books created by authors just like you

Built for Fiction

The tools that serve the story rather than replace it.

Writing style from your prose

A sample of your writing, or your imported manuscript, is the style reference for every chapter.

Characters and story bible

Character profiles and per-chapter events, twists and interactions keep the story straight.

Chapter chat

Ask for a change to any chapter and review it as a diff before accepting.

A real editorial pass

A genre scorecard, an editorial letter and line edits from the Book Editor.

Formatted and published

Print PDF and EPUB with a professional interior, and KDP forms filled for your review.

Try it on your own book

Plan, write and edit your first chapter free.

No credit card needed

Writing Fiction Before and After AIWriteBook

The same story, with a co-writer that follows your lead.

The Old Way

  • AI prose that tells instead of shows
  • Characters who drift out of character
  • Unseen rewrites of your scenes
  • A half-finished draft in a drawer
  • A manuscript that is never formatted

With AIWriteBook

  • Chapters written to your own style, with instructions you set
  • Character profiles carried into every chapter
  • Every change shown as a diff you accept or reject
  • Your draft imported untouched, with the next chapters planned
  • A print PDF and EPUB ready for stores

Already have a draft?

Import your Word file and keep writing in your own voice.

No credit card needed

What writers say about AIWriteBook

Real reviews left on AppSumo, Trustpilot and the other places our customers use.

4.7511 reviews onAppSumoCapterraTAAFTToolify

Questions From Fiction Writers

How it keeps your fiction yours.

Still have questions?Contact Support

Write Fiction That Reads Like You

Your voice, your characters and your decisions, from first chapter to published book. Start free.

  • No credit card required
  • Written in your voice
  • You keep 100% ownership