A writing surface that gets out of the way
A clean editor built for long-form prose. Headings, scenes, block quotes, and chapters: the structure of a book, with none of the clutter of a word processor.
Write your book.
Own every word.
A calm, offline studio to write, format, and publish your book to every store and to print. No subscription, no account. Buy once, own it forever.
Chapter 1
The Cliff
The lighthouse had stood on the headland for ninety years, and in all that time it had never once gone dark. Mara intended to keep it that way.
She climbed the iron stair each evening at dusk, counting the hundered and one steps out of habit, and watched the lamp turns its slow circle across the water.
The sea, tonight, was the colour of pewter.
Yours, not ours
Your words belong to you.
Margin keeps your book where it belongs: with you. We never hold a copy on our servers, and nothing you write is sent away to be read. Want a backup? Margin can save one to your own Google Drive, in your account and under your control. Wherever your book lives, it is yours.
- No copies kept by us, ever
- Optional backup to your own Google Drive
- Works the same with or without internet
On your device
- Your manuscript
- Spelling & grammar
- Print & ebook export
- Fonts & book setup
Everything Margin does, it does right here.
Your Google Drive
A private backup in your own account, switched on only if you want it.
Your copy. Your account. Your control.
The exact tools, nothing more
Everything you need to make a book.
Page-layout suites bury the few tools a book actually needs under a thousand you never will. Margin keeps the handful that matter, and makes them effortless.
Book setup in a single panel
Title, author, ISBN, trim size, and language live in one place. Click the title bar, fill it in once, and every export inherits it.
Images, placed like a typesetter would
Drop in figures and choose how they sit on the page: inline, full width, full page, or floated. The page preview shows exactly where they land.
A live page preview as you write
A real, paginated preview docks beside your text. Watch your words fall into a properly typeset book the moment you type them.
One source, every format
Your writing flows into the editor, the printed page, and the ebook from one place, all set in real book typography. Change something once and it updates everywhere.
Your book is one simple file
Your whole book is a single file you can copy, rename, email, or tuck into a folder. No libraries to manage, nothing locked away.
Sell it anywhere
Your book works with every store and platform.
Margin hands you the two files publishing runs on: a print-ready file for paperback and a clean ebook for every reader. Upload them anywhere you like. No conversion services, no middlemen.
Amazon Kindle 
Apple Books 
Google Play Books 
Kobo 
Barnes & Noble 
Scribd 
OverDrive 
tolino 
Draft2Digital 
Smashwords 
IngramSpark Paperback A print-ready file, set in real book typography.
Ebook A reflowable file that looks right on every reader.
She climbed the hundered and one steps and watched the lamp turns its slow circle.
Spelling hundered hundred
Checked entirely on your device
Built-in proofing
Grammar and spelling, caught as you write.
Margin underlines the mistakes that matter: misspellings, capitalization slips, doubled words, and broken grammar, with the same inline corrections you'd expect from the best checkers. The difference is that it all runs on your machine, so not a single word is sent away to be read.
- Real-time underlines, right in the text
- One-tap corrections and suggestions
- Runs on your machine, nothing sent away
How Margin compares
A better way to make a book.
Atticus, Vellum, and Lacuna are capable tools. Here's where Margin is simply different: offline, on every platform, and yours from $0.
| Margin | Vellum | Atticus | Lacuna | |
|---|---|---|---|---|
| Works fully offline | Yes | Yes | No | Yes |
| macOS, Windows & Linux | Yes | No | Yes | No |
| Print-ready paperback file | Yes | Yes | Yes | Yes |
| Ebook for Kindle, Apple & Kobo | Yes | Yes | Yes | Yes |
| Built-in grammar & spelling | Yes | No | No | No |
| No account needed | Yes | Yes | No | Yes |
| One-time price, no subscription | Yes | Yes | Yes | Yes |
| Your book stays yours | Yes | Yes | No | Yes |
Vellum is Mac-only. Lacuna runs on Mac and Windows. Atticus is cloud-based and asks you to sign in. Margin runs offline on all three platforms, with no account at all.
One price, once
Buy once. Own it forever.
Software you buy and keep, the way it used to be. No subscription, no per-book fees, no login that can expire. Pay once, and Margin is yours.
Launch offer · only 12 of 100 spots left
$0 for the first 100 writers. After that, $10, once.
88 claimed · 12 left
- Every feature, nothing held back
- macOS, Windows & Linux
- Unlimited books, unlimited exports
- Updates included, no renewals
- No account, ever
- Your book stays yours, forever
The price is a small thank-you for the craft. It funds the time that keeps Margin sharp.
Questions
Questions, answered.
Don't see yours? Email us.
Is this a subscription?
No. Margin is a one-time purchase, and the first 100 writers get it for $0. Pay once and it is yours for good, with no monthly fees, no renewals, and no seats to manage.
Does Margin really work offline?
Yes, completely. Writing, the live page preview, the spelling and grammar checker, and every export all happen on your machine. You can write and publish an entire book with the internet switched off.
Is my book private?
Your book belongs to you. Margin never keeps a copy on our servers, and nothing you write is sent away to be read. If you would like a backup, Margin can save one to your own Google Drive, in your account and under your control.
Which platforms are supported?
macOS, Windows, and Linux. The same app, the same book, the same results on every one. (Vellum is Mac-only, and Lacuna runs on Mac and Windows.)
Can I sell on Amazon, Apple Books, and Kobo?
Yes. Margin gives you a clean ebook file you upload straight to Amazon, Apple Books, Kobo, Google Play, Barnes & Noble, and the rest. For paperback, you get a print-ready file for services like Amazon and IngramSpark.
Is the print file really ready to publish?
Yes. Margin sets your book in real book typography, with proper margins, page numbers, running heads, and your chosen trim size. The file is ready to send to a printer or upload to a print-on-demand service.
How is the grammar and spelling different from Grammarly?
It catches the same kinds of mistakes, misspellings, capitalization, doubled words, and grammar slips, right as you write. The difference is that it works on your machine, so your words are never sent anywhere to be checked.
Where is my book kept?
Your whole book is a single file on your computer, easy to copy, rename, back up, or move to another machine. Nothing is locked inside an account or a library you cannot get out of.
Do I need an account?
No. No sign-up, no login, no email needed to write. Download Margin, open it, and start your book.
Do updates cost extra?
No. Updates are included, and the app keeps itself up to date. You bought the tool, so you keep getting better versions of it.
What if my question isn't here?
Write to us and a real person will answer. We read every message.
Start your book today.
Download Margin, open a blank page, and write the first line. When it's done, export it and publish. All of it on your own machine, all of it yours.