Write your book. Publish it beautifully.
Proselis is book writing software that lives in your browser. Write for free, organized the way real books are, then export ebook-ready EPUB and print-ready PDF when it's time to publish.
Free forever for writing. No install, no credit card.
The editor
Everything a book needs
Chapters are just the beginning. Proselis understands the rest of a book too — a title page, a copyright page, dedications and epigraphs, a table of contents that rewrites itself when you rename a chapter, and every back-matter page from About the author to Books in this series.
Footnotes and endnotes number themselves. Images stay with their captions. Verse keeps its line breaks. You write; the book stays a book.
Bring your work
Start from the manuscript you already have
Drop in a Word manuscript and Proselis reads it the way an editor would — finding your chapters, your front matter, and your back matter, and turning them into real, organized pages.
You review the detected structure before anything is imported, and your manuscript never leaves your control.
Book design
Beautiful typography, zero design work
Pick a theme and your whole manuscript follows — typefaces, chapter openings, drop caps, scene-break ornaments, spacing. Customize any element, or don't: the built-in themes are hardened for export.
Preview your book on the screens readers actually hold — Kindle, iPad, iPhone, Kobo, e-ink — before anyone else sees it.
Your words are safe
Never lose a word
Every keystroke is saved to your device as you write, and your books are automatically backed up to your account in the cloud — close the laptop, open another device, and keep writing mid-sentence.
Revision history keeps checkpoints of every page, and deleted pages wait in Trash instead of disappearing. Your manuscript is never one mistake away from gone.
Publishing
Ebook-ready. Print-ready.
When the manuscript is done, Proselis does the formatting a book designer would: a reflowable EPUB accepted by every major store, and a print-ready PDF set in your theme's typography.
DOCX export is free and unlimited, always — your words are never held hostage.
And the details writers notice
Focus mode
One keystroke strips the chrome away, leaving a bare page and your sentence.
Search and replace
Across every chapter and page — and a multi-page replace is one undo.
Revision history
Checkpoints of every page as you work, each restorable in a click.
Footnotes and endnotes
Markers, numbering, and reader popups handled for you.
Every device
Your library follows your account — open a book anywhere you sign in.
A living table of contents
Generated from your chapters; renames show up the moment you type them.
Free to write. Pay only to publish.
Write your whole book for nothing — unlimited books, automatic cloud backup, unlimited DOCX exports. A one-time $20 unlocks the publishing formats for a book when it's ready.
See what's includedYour story is waiting.
Begin your book