ProseLoom

In development · Windows first

Write your book.
Own the app.

ProseLoom is the workshop around your writing — it remembers your book, keeps a version every time you pause, and lets you rule on every change. Your chapters stay as ordinary files on your own computer. No subscription. No cloud required.

One email when there is something to download. Nothing else, ever.

Works offline. Always. No account to create. Your files stay yours — plain .docx on your disk. Windows first. macOS follows.

Three things that do not change

Your files stay on your machine

A ProseLoom book is ordinary .docx chapters and plain notes in a folder you choose. Word opens them. Google Docs opens them. Your publisher opens them. If you stopped using ProseLoom tonight, your book would still open tomorrow.

It works with no internet at all

ProseLoom runs on your own computer. On a plane, in a cabin, on a bad connection — it behaves exactly the same, because there is nothing to reach for.

Buy it once, use it forever

No subscription. No metered anything. No renting your own manuscript back from a service that could change its mind about you.

What the workshop does

You already have a word processor you like. ProseLoom is not trying to replace it — it is the part that remembers, protects and reviews, so the words you write become a book that can actually be finished.

Your book remembers

Every person, place, date and family tie you write down is captured once, in your book’s own memory. Names light up as you type. If a birth year drifts or a name is spelled two ways, you are told quietly, before it reaches print.

Every change is yours to keep or undo

Nothing is changed behind your back. When you review a new version you rule on each change, down to a single sentence, and take only what you want.

A version every time you pause

Not a save button you have to remember. A version, quietly, as you go — so the sentence you wrote an hour ago is still there when you want it back.

Word is welcome here

Open a chapter in Word, edit it there, close it. ProseLoom notices the file changed outside the app, tells you plainly, and lets you decide what happens — it never quietly picks a winner.

How it compares

The honest version. Word and Google Docs are excellent at what they do, and ProseLoom does not try to out-typeset either of them.

 ProseLoomWord 365Google Docs
Works with no internetYesYesLimited
Your files on your own diskAlwaysYesIn the cloud
Subscription requiredNoYesFree tier / Workspace
Knows what your book isYesNoNo
Page layout, tables, mail-mergeNo — use WordYesYes

Competitor capabilities as generally documented by their makers. If anything here is wrong or has changed, tell us and we will correct it — that is not a courtesy, it is the point.

Where this actually stands

ProseLoom is being built now, and is in private testing. There is no public download yet, and there is no Mac version yet.

We would rather tell you that than put a download button here that gives you something we have not finished testing. When there is a real installer, this page will say so and the file will be here with its checksum next to it.

That is a mailbox, not a marketing list. One message when there is something to download.