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Self-editing for novels, memoirs and nonfiction

Book Editing Software

Self-edit your whole book with an AI that can search every chapter and propose changes to the exact paragraph, even in chapters you haven't opened.

Try it on the book you're editing

DOCX, TXT or Markdown (.md): files, a folder or a ZIP, up to 200 files and 50 MB. Each file becomes a chapter.

Files are encrypted in your browser and upload as soon as you choose them. Then create a free account or sign in, and your book opens as a project.

No files handy? Sign up free and bring your book in later.

See a chapter mid-⁠edit

A sample novel, open at chapter 7. Asked to tighten two slow paragraphs and add one sensory detail, the AI planned three edits. Each lands in the text as a marked change you accept or reject. A memoir or a how-to book is edited the same way.

Saltfog›Chapter 7 · The Lamp RoomSaved · just now
Chapter 1 · The FerryChapter 5 · The ChartChapter 6 · Old DebtsChapter 7 · The Lamp RoomChapter 8 · Night CrossingChapter 9 · Lamp Oil
Geography & tides.mdLamp room, 1911.pdf
AzhiGrandfather, keeperCharacter map
Keeper's log 1911.pdfField notes: the fog
After the Tide
The day Wren came back to Saltfog, fog rolled in off the water. By the time the ferry touched the pier, all she could see of the lighthouse was its outline, like a candle someone had blown out halfway through.
−She climbed the stone steps. They were old, every one of them worn to a shine by generations of keepers, with small wet moss growing in the cracks, so that you had to be careful where you put your feet. She went slowly, and as she went she remembered being small, her grandfather holding her hand, when her legs were short enough that each step took two of her own.
+She climbed the steps that generations of keepers had worn to a shine. As a child, her grandfather holding her hand, each one had taken two strides; now it took one, and she was faster than her memory of it.AcceptReject
The lamp room door was not locked. She turned the brass handle, pushed it open, and felt along the wall for the old switch. She paused for a moment. Then she pressed it, and the lamp came on.
The beam swept the water and turned the fog a dirty white. She understood, suddenly, why her grandfather had never agreed to move down into town. Up here you were the only person who could make the night step back.
Footsteps came from below, light ones, stopping halfway up the stair. Wren did not turn around. She had known the town would come sooner or later. She had not expected the first of them to walk so quietly.
Accept AllReject All
1,860 words · 14 paragraphs
Muses
The first two paragraphs drag. Tighten them, and when the lamp comes on, give me one concrete sensory detail.
Read complete[Article]Chapter 7 · The Lamp Room· 14 blocks

I've read all 14 blocks of the chapter. The first two paragraphs both set up weather and the stairs, and they repeat each other; the first real action, her opening the door and pressing the switch, doesn't arrive until paragraph 3.

I’ll make three edits: cut paragraph 1 to the ferry and the lighthouse outline, fold the stair memory in paragraph 2 into one contrast, and add a single touch or smell to paragraph 3 as the lamp comes on.

Patch Edit·3 operationsPending review
Tighten paragraph 12Tighten paragraph 23Add sensory detail to paragraph 3

You've accepted the first one; the second is marked in the draft for you to accept or reject. For paragraph 3 I'll add a single sentence and leave your pacing alone.

Editing paragraph 3…

Help that works across the whole book

Take a 22-chapter memoir about growing up above the family bakery. You renamed your brother Sam for privacy, but he's still Tom in a few chapters, and the bakery fire is in 1994 in chapter 4 and 1995 in chapter 19. Here's how that edit goes in Muses.

  • Find a name or a date in every chapter

    Ask where Tom still appears. The AI can search all your chapters and notes and show you the passages it finds, chapter by chapter. Dates, figures and recurring phrases work the same way.

  • It rereads the chapters that matter

    Chapter 4 says 1994; chapter 19 says 1995. The AI can go back to both chapters, quote the two lines side by side and ask you which year is right.

  • Changes proposed in the exact paragraph

    Tell it 1994 is right, and it can propose that fix in chapter 19 and a Sam for each Tom it found, paragraph by paragraph, even in chapters you haven't opened. Chapters with changes waiting are marked in the chapter list.

  • It remembers what you've settled

    It can keep short notes about the book: Sam, not Tom; the fire was in 1994; the bakery chapters are in present tense. It brings them into later sessions, and you can read, change or delete every note.

  • A reader's response, then a proofread

    In the chat, pick Review & Suggestions for a candid reader's take on the open chapter: where it holds attention, where it drifts. It leaves your text alone. Pick Proofread for a numbered list of spelling, grammar, punctuation and consistency slips in that chapter or a selected passage, each with a fix you can ask for.

  • You decide on every marked change

    The AI's edits to chapter text you've written appear as marked changes. Accept or reject them one at a time or all at once; finishing a review saves a version, and each chapter's history lets you compare and restore.

From chapter files to a cleaner draft

One self-editing pass through that memoir, ending with a clean copy for your editor.

01

Bring the chapters in

Choose the folder of 22 chapter files, or a ZIP of it. Each file becomes a chapter and folders stay folders. Sign up or sign in, and the memoir opens as a project at its first chapter file.

02

Work through it in passes

Start with a reader's take on chapter one, tighten the passages it flags, then ask for every place Tom still appears. Select a passage or @-mention a chapter to point the AI at it.

03

Proofread, then export

Proofread chapter by chapter and ask for the fixes you want. Then export the memoir as one DOCX for your editor, or a ZIP with a file per chapter; Markdown, TXT and PDF work too.

Worth knowing before you bring your book in

Is it only for novels?
No. A novel, a memoir, a how-to guide or a business book comes in the same way: your chapters, in your folders, with nothing added. Create folders of your own for research, sources, character notes or a style sheet, and the AI can search them alongside the chapters.
Can it check the whole book, or only one chapter at a time?
In the chat, the AI can search every chapter for a name, a date or a detail, read the passages it finds and propose fixes across several chapters. Review & Suggestions and Proofread work on the chapter you have open or a passage you select. It looks things up as it goes instead of holding the whole book in mind, so a long book may take several requests and it can miss things; give it a final read yourself.
Will the AI change my writing without asking?
Changes the AI makes to chapter text you've already written show up as marked changes for you to accept or reject. The exception is an empty chapter: if you ask the AI to write there, the text goes straight in. Version history lets you go back either way.
Which files can I bring in?
DOCX, TXT and Markdown, as single files, a folder or one ZIP: up to 200 files and 50 MB per upload, 10 MB per file. Save .doc files as DOCX first; PDFs aren't accepted, and images inside a DOCX aren't imported; a short placeholder marks where each one was. For a bigger library, sign in and use Import Project on your Muses home page.
My whole book is one DOCX. Can I bring it in as it is?
Yes. It comes in as one long chapter, because Muses doesn't split a file at its headings, and the AI can still search it and propose edits paragraph by paragraph. Review & Suggestions and Proofread work on the open chapter or a passage you select, so one file per chapter makes those passes easier; numbered names like 01_Arrival.docx keep the order. Only an unusually long single file may be skipped.
What happens to my files before I sign in?
They're encrypted in your browser before they upload. Sign in or create an account in the same browser within 30 minutes and the book becomes a project in your account; the encrypted upload is deleted once the import finishes. After 30 minutes it can no longer be imported, so choose the files again. Once imported, the book stays yours: export it as DOCX, Markdown, TXT or PDF whenever you like.
Does it replace a professional editor?
No. Muses is for the edit you do yourself. Do it before an editor reads the book, so their time goes to the bigger questions, or as your main pass when hiring one isn't in the budget yet. The judgment calls stay with you.
What doesn't it do?
It doesn't lay out print or EPUB files, and it doesn't run as a plugin inside another editor: bring your files in, and take a DOCX back out when you're done. There are no tracked changes, comments or shared editing, no grammar checker that flags errors as you type and no style or readability scores. To involve an editor or beta readers, export a DOCX or PDF and send it.
What does it cost?
Creating an account and importing your book are free, and so is editing by hand. The AI uses monthly credits: the free plan includes some each month and paid plans include more; see the pricing page for current plans.

Catch what slipped through before anyone else reads it

Upload the chapters you have, sign up free and start with one question: a name that changed, a date that moved, a chapter that drags. Keep the fixes you agree with, then export when it reads right.

Try it on my book