Under maintenance — Sandrine. is back Sunday at 10am. The joys of beta. Thanks for bearing with us.
Free until May 15 — paid launch coming soon.

She reads your manuscript.
Then she turns it into a book ready to publish on Amazon.

Interior, cover, ebook, website, campaign — from a single file.

Start with your manuscript

Reads before it writes · Built by an author · Free during beta

A page from a real manuscript

This is the work.

Sandrine reads. Then she annotates in the margin — like an editor would. She never rewrites without telling you why.

she walked into the room without knocking. the lamp was still on.

between the silence and the door, something — a held breath, maybe — refused to leave.

elle ne dit rien. she didn't need to.

Three sentences. Three annotations. No changes without explanation.

  • L.1

    Lowercase opening — kept. Marked as intentional.

  • L.2

    Em-dash + fragment — your rhythm. Protected.

  • L.3

    Code-switch FR↔EN — flagged as voice, never as error.

Before she touches a word

This is what she sees before she touches your text.

  • Reading your manuscript…
  • Detecting your voice…
  • Protected: lowercase openings ▢
  • Protected: visual typography ▢
  • Protected: multilingual elements ▢
  • Your voice is safe.
  • Your manuscript is never used to train AI.
  • Automatically deleted after 30 days — or keep it if you want.
  • No account required.

How it works

Three moves.

  1. 01

    You drop your manuscript

    She reads it and identifies its structure.

  2. 02

    You set your intent

    Genre, cover, launch.

  3. 03

    She builds the book

    Interior, cover, ebook, campaign — files ready to use. Author website prepared by Sandrine and delivered within 72h after your review.

The files are ready to use.

The six tools

Everything between your manuscript and your reader.

Editing & voice

She reads your voice first. Then she edits.

The editing works like Grammarly, except Sandrine. reads your book first — to respect your style, your patterns, your intentional choices. Four editing levels, from maximum voice preservation to full structural review.

Voice fingerprint
Lowercase openings protected
Sentence fragments protected
Visual typography protected
Em-dash rhythm protected

KDP layout

Your interior PDF. KDP-ready. First time.

Sandrine. identifies your book genre — novel, poetry, academic — and formats your interior using the same engine as Oxford University Press (yes, really). Applying the exact typographic rules of that genre: first-line indent for fiction, flush left for poetry, block spacing for essays, and more.

CHAPTER ONE

The morning was the kind that makes you forget there was ever a night before it.

She walked the long way around - past the bakery, the empty bench, the church that no one entered anymore.

And she carried the letter, unopened, in her left hand…

Bleed 0.125"
Mirror margins
Spine 0.62"
Fonts embedded

KDP keywords

7 keywords. 2 BISAC categories. Found by your readers.

Sandrine. is built with a search engine designed specifically for the Amazon KDP market. She analyzes your manuscript's themes and language, then identifies the 7 keywords and 2 low-competition BISAC categories that will help your readers find you — based on what they actually search for, not on your genre. Available for €19 or included in Complete.

7 keywords · low competition
slow burn romancesmall town second chanceenemies to loversfound familysingle dadgrumpy sunshinefake dating
2 BISAC categories
FIC027020 · Romance / Contemporary
FIC027120 · Romance / Romantic Comedy

Cover

3 covers born from your world.

Sandrine. runs a 10-minute moodboard session — your references, your colors, your mood — then generates 3 distinct concepts built from your vision, not from a stock library. Or skip the session, let her suggest 3 directions from your manuscript, and get them KDP-ready.

The Object

The Object

A key element of your world.

The Atmosphere

The Atmosphere

Your book's emotion, translated into image.

The Genre Subverted

The Genre Subverted

A design that runs against expectations.

One familiar. One emotional. One that breaks your genre's rules.

Author site

Your author website. Prepared by Sandrine.

Sandrine. reads your manuscript, analyzes your cover palette and mood, and writes your bio, synopsis and one-liner in your voice. The site is then reviewed and refined by an editor before delivery to ensure a professional result that truly reflects your vision, and belongs to you — validated within 72 hours.

A. Lavoie

sandrine.life/site/lavoie

Launch campaign

30 posts. Written from your actual book.

Sandrine. identifies your reader profile, then pulls lines from your actual manuscript to write 30 launch posts in your voice. Platform-specific. Calendar-ready. Because she read your book.

Launch calendar30 posts
Quote
Story
Reader
BTS
Quote
-
Reader
Story
Quote
BTS
-
Quote
Reader
Launch

The alternative

9 tools. Or one.

The usual way

  • Grammarly Premium$12/mo
  • Midjourney$10/mo
  • Canva Pro$15/mo
  • Notion$10/mo
  • Vellum$250 once
  • Publisher Rocket$97 once
  • Buffer$6/mo
  • Squarespace$16/mo
  • ChatGPT Plus$20/mo

$89/month

+ $347 one-time

+ 9 accounts

+ hours of setup

Sandrine▢

Everything in one place.

One account.

Already optimized for KDP.

  • Complete€97 / book
  • Lifetime€179 — forever
  • Studio€499 — all-inclusive
  • Author website€150 — standalone

All future features. All updates. No extra cost. Ever.

9 subscriptions. Hours of work. Or €97 and one afternoon.

Pricing & Royalties

Sandrine protects your money too.

Most authors underprice their books without knowing it.
$9.99 sounds reasonable.
After printing costs, you earn $1.20 per sale.

Sandrine calculates your real printing cost, shows your royalty at every price point, and recommends the price that makes your book financially sustainable.

At $9.99 you earn $1.20
At $12.99 you earn $9.09
At $14.99 you earn $11.09

Real numbers. Calculated from your actual page count and paper type. Before you publish.

You have a manuscript and you want a published book — but between the two: editing, formatting, cover, keywords, campaign, author site.
Sandrine. takes care of all six — one file, one afternoon.

FAQ

Honest answers.

For editing and formatting, yes. For the cover and website, you can start with just your title and a description.

.docx, .txt, .md, or paste directly. No special formatting required.

No. She detects your intentional choices before touching anything. Fragments, lowercase, unusual punctuation - if it's consistent in your manuscript, Sandrine protects it.

Your manuscript is deleted after 30 days. Sandrine never trains on your writing. No account required to start.

English and French fully. Multilingual manuscripts supported.

An indie author who published on KDP and couldn't find a tool that worked for his books. So he built it.

Free until May 15. After that: Complete €97 per book, Lifetime €179 once (launch price ends May 31), Studio €499 once. Standalone author website €150. No subscription. No monthly bill.

Your book is finished.
Everything else takes one afternoon.

Cover. Interior. Ebook. Website. Campaign.
All from one manuscript upload.