Write a book with AI that plans, drafts and remembers every page, from the first idea to the finished book. A novel writing app that works as a planner, a drafting partner or a quiet editor: nothing changes your book until you accept it.
Turn one idea into a whole book: title ideas, genre, length, people, places and a chapter plan, then chapters drafted as you watch. You approve every step.
Free checks catch name typos and timeline slips, the consistency check quotes both pages when the story contradicts itself, and nine edit passes polish the rest.
Import a Word, text or PDF manuscript. NovelGPT finds your chapters and maps your story, so the AI can help you revise and finish it.
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Start with an idea
One idea in. A whole book plan out.
Type your story idea in a sentence. NovelGPT suggests the genre, voice and length, then builds your people, places, key moments and a chapter-by-chapter plan. You approve every piece.
Your ideaA lighthouse keeper’s daughterfinds a ledger of shipwrecks.
Mystery
Close third
Past tense
PeopleMara Quell
Places & worldSkerry Point Lighthouse
Key momentsThe ledger is found
Chapter planLow Water
Write with AI
Watch your chapter write itself.
Draft a whole chapter from your plan, write on one scene at a time, or polish a single paragraph. Every AI change arrives as a suggestion you accept or reject, and the price is shown before it starts.
Chapter 1 · Low Water
The rain had been following Mara Quellsince the city. Tomas looked older.They both did.
Suggestion
He looked older. They both did.
He looked older. Grief had been at both of them.
AcceptReject
Our consistency engine
The AI that never loses the story.
Story memory keeps track of who knows what, who is where and every promise you have made the reader, chapter after chapter. It catches slips before your readers do, and quotes both pages so you can fix them in one tap.
Chapter 1Chapter 2Chapter 3Chapter 4
Story memory
Mara · grey eyes
Edwin · buried, Chapter 1
Ledger · in the lamp room
Promise · the cracked third stair
Must fixMara’s eye colour changes
Chapter 1“…her father’s grey eyes looking back at her.”
Chapter 4“Mara blinked the salt from her green eyes.”
See the whole book
See your whole novel. No more writing blind.
The Book map shows every chapter at a glance: acts, key moments, rising tension and who appears where. The timeline follows events in story time, flashbacks included.
Already writing?
Bring your draft. Finish it here.
Import a Word, text or PDF manuscript. NovelGPT finds your chapters and can map your people, places and plot, so the AI helps you revise and finish the book you started.
the-tide-ledger-draft.docx
1Low Water
2The Third Stair
3Mrs Vane Brings Soup
4As Written
…and every other chapter
People
Places & world
Key moments
Every device
Write anywhere. Pick up where you left off.
Sign in and your books follow you across iPhone, iPad, Android, Mac and the web. Start a chapter at your desk, add a scene on the train, finish it on the sofa: your chapters, people and notes are waiting on whichever screen you open next. Signing in is free and optional.
Chapter 2 · The Third Stair
The lamp was lit. Mara counted twice.
Mac
Chapter 2
The lamp was lit.Mara countedtwice.
Phone
Chapter 2
The lamp was lit. Mara counted twice.
Web
Signed in
Up to date on every device
iPhone · iPad · Android · Mac · Web
Your cover
A beautiful cover in minutes.
Start from a genre style, then let the AI paint the art from your story. Change the title, fonts and colours, and export a cover sized for every store.
The Quiet HoursS. OKAFOR
The Tide LedgerE. MORROW
Ashes of the Ninth CrownC. WREN
Create with AI
Romance
Mystery
Fantasy
Ready for readers
From first line to finished book.
Add front and back pages, then export to EPUB, DOCX manuscript format, PDF, Markdown or plain text. You own every word, your writing is never used to train AI, and you can start without signing up.
The Tide LedgerE. MORROW
EPUBFor e-readers
DOCXManuscript format
PDFReady to share
MDMarkdown
TXTPlain text
You own every word
Never used to train AI
On every device
Everything in the studio
Everything a novelist needs, in one calm place.
Idea to book setup
One sentence becomes a genre, voice, length and a full Story setup you can change.
People with depth
What they're after, what they wrongly believe and what they really need, plus a relationship web.
Places & world
Settings with sights, sounds and rules that the AI respects in every chapter.
Key moments & side stories
Plot your turning points and side stories, then see where each one lands.
Chapter plan
An outline for every chapter. Drag to reorder; numbers follow.
Book map
Acts, tension, key moments and who appears where, all on one page.
Timeline
Events in story time, swimlanes per person, flashbacks linked.
Promises to the reader
Every setup tracked to its payoff. Overdue ones are flagged.
Draft this chapter
A whole chapter from your plan, streamed as you watch, with a Stop button.
Rewrite, expand, polish
Show don't tell, sharper dialogue, more sensory detail. You accept or reject.
Story memory
Every chapter is turned into facts, threads and a summary the AI never forgets.
Free checks
Name typos, people who appear after they left, tense slips and timeline order. Free and instant.
Consistency check
Whole-book check that quotes both passages. Must fix, Worth a look or Minor.
Ask about any chapter; it cites pages and suggests edits you approve.
Rename everywhere
Rename a person or place once; chapters, plans and notes follow, with one Undo.
Import a manuscript
Word, text or PDF in; chapters, people, places and plot mapped for you.
Export anywhere
EPUB, DOCX manuscript format, PDF, Markdown and plain text.
28 genres, 74 subgenres
Fiction and nonfiction. The genre shapes every suggestion.
On every device
iPhone, iPad, Android, Mac and the web. Sign in to sync, if you want.
Your writing is yours
You own every word, including what the AI writes. Never used to train AI.
Nothing is lost
Auto-save, version history and Undo on every delete.
Every genre
Write any genre with AI.
Romance, fantasy, thrillers, science fiction, memoir, self-help and more: 28 genres and 74 subgenres, each with its own structure, voice and typical length, so the AI writes the book your readers expect.
Yes, to start. The Free plan includes 1,000 credits every month and you can write by hand for free, as much as you like. On Free the AI writes the first 3 chapters of each book; paid plans and credit packs add more AI when you need it.
Do I need to sign up?
No. Open NovelGPT and start writing; your books are saved on your device. Sign in only if you want your books on your other devices too.
Can AI write a whole book?
Yes, chapter by chapter, and as much or as little as you want. NovelGPT can set up the book from one idea and draft every chapter from your plan, write on a scene, polish one line, or stay quiet while you write every word. Nothing changes your book until you accept it.
How is NovelGPT different from ChatGPT for writing a novel?
A chat forgets what happened forty chapters ago. NovelGPT keeps your people, places, plot and every chapter in story memory, gives each writing action the parts that matter, and checks new chapters against the old ones.
How does it keep the story consistent?
Story memory reads each chapter and keeps facts, promises and summaries. Every writing action is given the people, places and earlier chapters that matter, and checks quote both passages when something doesn't match.
Which AI is best for writing a novel?
The one that suits the job, so you choose. Pick models from Claude, GPT, Gemini and Grok: a stronger one to plan and draft, a faster one for quick fixes. Free credits cover Claude Haiku 5.5 and GPT-6 Luna, and the cost is shown before every action.
Who owns what I write?
You do, including the text the AI writes for you. You can publish and sell your book. Your writing is never sold and never used to train AI models.
Can I publish a book I wrote with AI?
Yes. Export EPUB, DOCX in standard manuscript format or PDF and publish wherever you like. Some stores, Amazon KDP among them, ask you to say when text or images were made by AI, so check their current rules before you publish.
Does it work for nonfiction?
Yes. Memoir, self-help, narrative nonfiction and more are among the 28 genres, each with its own structure and style.
Can it write a novella or a shorter book?
Yes. Pick a length from a novelette or novella up to an epic novel, and the chapter plan and every draft follow it.
Can I bring a book I've already started?
Yes. Import a Word, text or PDF file and NovelGPT finds your chapters. If you want, it maps your people, places and plot so the AI can help you finish it.
Can it make my book cover too?
Yes. Start from a genre template, let the AI paint the art from your story or use your own image, and export a cover sized for Amazon KDP. Each AI image shows its price before it starts.
Your next novel starts with one sentence.
Type your idea. NovelGPT will set up the book, and you write it your way.