The publishing workspace for independent authors
PublishOS prepares print and ebook files, checks the details, calculates royalties and creates the launch material, all in one guided workspace.
PublishOS is being prepared for release. Your response will help us understand which publishing tasks matter most to authors.
The problem
A finished manuscript still needs four things before readers can buy it: finished files, checked details, reliable figures and launch material. PublishOS brings that work into one guided workspace.
Set trim size, margins, running heads, contents, front matter and back matter by hand. Repeat the process for each format.
Upload the manuscript to a separate service, then check whether the structure survived the conversion.
Rebuild printing costs, royalty tiers and advertising limits for each marketplace.
Create the product page, social posts, emails, cover brief and advertising plan from scratch.
Formatting errors can remain hidden until the proof copy arrives.
The proposition
PublishOS runs on your computer and opens in your browser. Choose a stage to see its inputs, actions and outputs. Each stage uses the same book information, keeping the files, figures and launch material connected.
Chapter one
The evening before
Before leaving work, place the notebook, source material and first task on the desk. In the morning, write the task in one sentence before opening email. Keep the phone in another room until the first twenty minutes are complete.
She took the elevator to the second floor, bought gas on the way home, and by February 15, 2026 had realized the color was wrong.
The manuscript as supplied: one Word file, with no page geometry applied.
One Word manuscript becomes the print interior, the Kindle file and the EPUB.
Spelling, dialect and the voice and structure that stay consistent across a series.
Printing cost, royalty for each sale, and the point at which advertising stops paying.
The product page, social posts, emails, cover brief, advertising plan and newsletters.
Illustrative output
Thirteen modules in four stages. All thirteen are described in full on the modules page.
Stage 01 · Prepare the book
Choose the trim size, page style and body typeface. PublishOS applies the page geometry, front and back matter, contents field, running heads and chapter pagination. It returns the converted files, a change report and a final Word checklist.
PublishOS interface, recomposed for this website using a sample manuscript. The formatter runs on your computer.
Stage 02 · Check the details
A UK first floor is a US second floor. PublishOS converts unambiguous spelling and vocabulary, flags context-sensitive terms in Word comments, and records the changes. It does not alter passages outside the selected conversion rules.
Scope: the body of the document. Footnotes, endnotes, headers and footers are not converted. One comment for each flagged word, on its first occurrence. The conversion runs on your computer.
Stage 03 · Understand the numbers
Enter a page count, a trim size and a list price. PublishOS applies Amazon’s published rates across the five marketplaces, calculates the printing cost, the royalty tier and the highest a click can cost, and compares paperback with Kindle. The calculation runs on your computer.
At a list price of 12.99 in each local currency, this example earns £4.54 in the UK and loses A$1.20 in Australia. The calculator runs on your computer.
The Keyword Brief is AI-assisted. You supply a title, an optional subtitle, an audience and any themes you choose to paste, and PublishOS sends those to Anthropic using your own API key.
For the KDP keyword fields.
For site copy, posts and pins.
Questions beginning with what, why, how, is or can.
Searches that would show the advert to the wrong reader.
Rates last checked on 8 September 2026 against Amazon’s KDP help pages. Royalty estimates only; confirm final figures in KDP. This demonstration covers regular trim sizes and assumes a valid KDP list price. The application also supports large trim sizes and rejects list prices outside the permitted range. This is not financial advice and not a revenue promise.
Stage 04 · Build the launch
Six modules use the same book details and brand guidance, keeping the product page, social posts, emails, cover brief, advertising plan and newsletters consistent.
Hero, transformation, qualification, contents, author, testimonial placeholders, FAQ and closing call to action, each ready to review, edit and publish.
“Tomorrow’s first task is easier when tonight’s desk is ready. Put the notebook, source material and first task in place before you finish work.”
A plain desk seen from above in early morning light, with one open notebook and a pencil. No people, mugs, clocks or sunrise imagery.
The module compares new subject lines with the previous forty and flags repeated subjects or ideas, then scores each issue on your computer.
Illustrative output
AI-generated demonstrations are illustrative and use the fictional sample manuscript, The Quiet Morning. Results depend on the material supplied. Testimonials are returned as marked placeholders for you to replace. PublishOS creates the cover brief; it does not design the cover, and it does not write the book.
How it works
PublishOS opens locally in your browser. File preparation, spelling conversion and royalty calculations run on your computer. AI-assisted modules send the material you choose to Anthropic through your own API key.
Print Formatter, Kindle Converter, EPUB Builder and Spelling Converter, plus the royalty calculations and the quality and readability scoring.
Eight modules, plus the Keyword Brief beside the royalty calculator.
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Show interest
Leave your email address to show your interest and tell us where publishing takes the most work. Your response will help us decide what to prepare first.
PublishOS