Privacy
Last updated November 9, 2026
Your manuscript
Your manuscript stays on your computer. It is read and built inside your browser and is never uploaded.
What reaches our server
- Your IP address, briefly, to limit repeated requests. Our code doesn't store it.
- Anonymous events: the event name and yes-or-no flags for footnotes, images and suspect headings, plus the time of each event. No text, no file names, no exact numbers.
- Your email address, only if you submit the Notify me form, with the date you sent it.
- When paid plans open: a license key and a device name, to activate your plan.
Our server runs on Cloudflare, which handles these requests and may keep standard request logs under its own policy.
Your email address
We keep it in Cloudflare Workers KV until the paid version launches. We send you one email about the launch, then delete the address. To have it deleted sooner, write to us through Support.
Stored on your computer
Your browser keeps the book engine and fonts in its cache so they aren't downloaded twice. Nothing from your manuscript is stored.
Counter and cookies
There are no cookies. On pages without the tool (like this one) we use Cloudflare Web Analytics, a cookieless visit counter. It's off on pages with the book tool.
Payments
There are no payments yet. When a payment provider is chosen, it will be named here first.