From First Idea to Finished Book.

Everything you need to write, edit, design, and publish your book — in one intelligent author studio.

Buuk helps you turn an idea into a real, finished book. Plan your story. Build your structure. Write chapter by chapter. Revise with confidence. Design the interior and cover. Then export files that are ready to publish.

Not another folder full of drafts.
A finished book.

Get Buuk See How It Works

IdeaStructureDraftRevise EditDesignProofPublish

Your Entire Book. In One Place.

Writing a book is bigger than writing words.

There are characters to remember. Arguments to develop. Research to track. Chapters to structure. Storylines to resolve. Revisions to manage. Pages to design. Covers to build. Publishing files to prepare.

Buuk brings all of it together.

Your manuscript, research, characters, places, notes, chapter plans, revisions, design, and publishing files live inside one connected workspace.

And because Buuk understands how those pieces relate, it can help you work on the book as a whole, not just the paragraph in front of you.

Plan

Turn an idea into a clear book structure before you stare at an empty page.

Write

Draft chapters with an AI writing partner that understands your book, your plan, and your voice.

Revise

Strengthen scenes, arguments, pacing, clarity, continuity, and prose without losing what makes the book yours.

Design

Turn your manuscript into professionally typeset pages and a complete book cover.

Publish

Export the print-ready PDF, EPUB, cover, and manuscript files you need to publish your book.

Buuk Remembers Your Book.

Most AI writing tools know what is inside the prompt.

Buuk knows what is inside your book.

It understands your chapters, characters, places, research, themes, story threads, terminology, and chapter objectives.

So when you reach Chapter 18, Buuk can still understand what happened in Chapter 2.

It knows who has appeared.
What has been established.
What questions remain unanswered.
What a character knows — and what they do not.
Where an argument was introduced.
Where a storyline disappeared.
And how the previous chapter ended.

Chapter Briefs

Define what every chapter needs to accomplish, who or what belongs in it, what it introduces, and what it resolves.

Book Map

See the structure of your entire manuscript at a glance and identify gaps, unfinished sections, missing characters, and unresolved threads.

People, Places & Ideas

Build a living reference for the people, characters, locations, concepts, terminology, sources, and ideas that matter to your book.

Research & Notes

Keep the material behind your book connected to the chapters and subjects where you actually need it.

Write With AI Without Giving Up Control.

AI should help you write your book.

It should never quietly rewrite it for you.

Nothing Buuk generates is automatically inserted into your manuscript.

Every change is a proposal.
Accept it.
Reject it.
Change it.
Or ask Buuk to try again.

When Buuk rewrites existing prose, you can see exactly what changed with a word-by-word comparison before anything becomes part of your manuscript.

Your book remains yours at every step.

You are the author. Buuk is the studio.

AI That Can Actually Check Its Work.

Long books create thousands of tiny opportunities for mistakes.

A character's name changes spelling.
A person disappears halfway through the story.
Chapter Four accidentally becomes Chapter Six.
A phrase gets repeated seventeen times.
A nonfiction chapter references something that was never introduced.
The prose slowly develops the same sentence pattern over and over again.

Buuk combines generative AI with deterministic analysis — which means some things aren't guessed by an AI model.

They're counted.

“Martha” appears 37 times. “Marta” appears twice.
Tomas has not appeared since Chapter Two.
Chapter Three is followed by Chapter Five.
46% of the sentences in this chapter begin with “she.”
This phrase appears nine times across the manuscript.

These aren't judgments about your writing.

They're signals.
Buuk finds them.
You decide what matters.

Finally, AI That Can Learn How You Write.

You shouldn't have to sound like AI to use AI.

Give Buuk writing that sounds like you and it analyzes the measurable characteristics of your voice.

Those measurements become part of the instructions Buuk uses when helping you write.

Instead of simply telling an AI to “make this sound more like me,” Buuk can give it something much more useful:

Your average sentence is 18.2 words.
Your sentence-length variation is 41%.
You use contractions in 72% of eligible sentences.

Then Buuk measures the result again.

So when the writing starts drifting away from you, Buuk can see it.

Your Voice. Your Direction.

Sometimes you don't want Buuk to imitate what you already write.

You want to evolve it.

That's why Buuk gives you control over the direction of your prose.

Push the writing toward:

Use your measured writing style as the foundation, then deliberately move it where you want the book to go.

Because your instruction always outranks the algorithm.

Fiction or Nonfiction. Buuk Understands the Difference.

A novel and a business book shouldn't be written the same way.

Buuk adapts the studio around the kind of book you're creating.

Fiction

Develop characters, locations, relationships, scenes, timelines, story arcs, conflicts, themes, and unresolved threads.

Track what characters know.
Follow where they appear.
Watch continuity across hundreds of pages.
And keep the world of your story consistent as the manuscript grows.

Nonfiction

Build your thesis, arguments, chapter objectives, research, terminology, sources, examples, frameworks, and supporting evidence.

See where ideas are introduced.
Track where arguments are supported.
Find concepts that haven't been fully developed.
And make sure every chapter moves the reader toward the promise of the book.

Go From Manuscript to Actual Book.

Most writing software stops when the writing stops.

Buuk doesn't.

When your manuscript is finished, the same studio becomes your book-production system.

Buuk handles the details readers rarely notice when they're right — and immediately notice when they're wrong.

The book you proof is the book the printer gets.

Everything You Need to Publish.

When you're ready, Buuk produces the files your publishing workflow actually needs.

Print-Ready Interior

A professionally typeset PDF generated at your book's actual trim size with embedded fonts and production-ready pages.

Full Book Cover

Create a complete front, spine, and back cover using the actual page count and paper specifications of your finished book.

EPUB 3

Generate a properly structured ebook ready for modern ebook distribution platforms.

Editable Manuscript

Export a clean, double-spaced DOCX for editors, agents, publishers, or your own archive.

Write it in Buuk. Finish it in Buuk. Publish it from Buuk.

Your Manuscript Belongs to You.

Your book shouldn't disappear into someone else's platform.

Buuk is local first.

Your manuscript lives on your computer as real files.

Your chapters are files.
Your images are files.
Your project is a folder.

Copy that folder to another drive and your book goes with you.

Most of Buuk works without an internet connection or even an account.

When you use the AI assistant, Buuk sends only the context required for the task you're asking it to perform rather than automatically sending your entire manuscript.

Your writing is never used to train shared AI models.

Optional sync is available when you want your projects available across machines.

Your manuscript is your intellectual property.

We built Buuk accordingly.

One Studio. From Idea to ISBN.

You shouldn't need one application to outline your book.
Another to write it.
Another to manage research.
Another AI subscription to help edit it.
Another program to typeset it.
Another tool to make the cover.
And another service to prepare the publishing files.

You need one place where the book gets made.

That's Buuk.

Choose Your Buuk.

No API keys. No separate AI subscription. No complicated setup.

Start writing.

Writer

$29/month

For authors who want an intelligent place to plan and write their books.

  • Complete writing studio
  • AI writing assistant
  • Book planning and outlining
  • Chapter briefs
  • Story and book mapping
  • Characters, people and places
  • Research and notes
  • Writing-style analysis
  • Deterministic manuscript checks
  • Revision and editing tools
  • Project history
  • 5 GB sync
Start Writing — $29/mo

Author Pro

$49/month

For authors who want to go all the way from idea to published book.

Everything in Writer, plus:

  • Professional book design
  • Interior typesetting
  • Multiple book design presets
  • Print-ready PDF export
  • EPUB 3 export
  • Editable DOCX export
  • Full-wrap cover designer
  • Automatic spine calculation
  • Print-production checks
  • 20 GB sync
  • Higher AI usage allowance
Get Author Pro — $49/mo

You Have a Book in You.

Maybe it's a story you've been thinking about for ten years.

Maybe it's the expertise you've spent thirty years building.

Maybe you've already written 200 pages and don't know how to finish them.

Or maybe all you have today is an idea.

That's enough.

Buuk gives you a place to turn that idea into a plan. The plan into chapters. The chapters into a manuscript. And the manuscript into something you can finally hold in your hands.

Don't Just Start Your Book.
Finish It.

Start With Buuk