The OS of Indie Publishing

For authors and publishers. Mythener keeps every character, world rule and timeline in step across a series, and its Delphi Engine catches the slips before readers do.

How it works

From scattered notes to a finished series

  1. Step 1

    Start free

    Pick a plan and add a card. Nothing is charged for the first 30 days.

  2. Step 2

    Bring your series in

    Import the books you have from Word, EPUB or text, or start a new world from a blank page.

  3. Step 3

    Publish with nothing forgotten

    Write, check and release every book from one place, with the whole series remembered.

What it does

Built for the writer carrying a whole series in their head

The Delphi Engine

A grade for the whole manuscript, and what to fix first

Delphi runs 12 reviews and 145 checks on every chapter, against your own lore, voices and timeline. You get one grade, each review scored from weakest to strongest, and every slip pinned to its passage. It recommends; you decide what changes.

Delphi Engine · Chapter 2
“Chapter 1 says the toll was doubled, not paid twice. Decide which is canon.”

One world, every book

Never lose track of who is who

One entry for every character, creature and place, shared across the whole series. Each fact knows when it is true, so the entry shows the character as of any chapter.

Manuscript to bookshelf

Ebook and paperback from the same text

A bookstore-ready EPUB and a print-ready paperback, typeset from the same manuscript with your trim size and checked page by page before it goes to the printer.

“My manuscripts were gone and, worse, so was my world.”

In 2019 and 2020 I published three books, and the love and support from the community surprised me. Then a hardware fault corrupted my hard drive, and the repair shop wiped it completely. Every manuscript, every worldbuilding and lore note.

Seven years on, I’ve rebuilt that world in Mythener, and the next book in the series is about to go on pre-order.

Start free
D.W. Belfield
D.W. BelfieldAuthor and co-founder of Mythener

The workspace

Every stage of the book, in one place

What it replaces

Six tools that don’t talk to each other, or one that remembers everything

What a series needsBought separatelyMythener
WorldbuildingCampfire$12 a monthIncluded
DraftingScrivener$59.99 one-offIncluded
Series planningPlottr$60 a yearIncluded
Manuscript checksProWritingAid$120 a yearIncluded
Beta and ARC readingBookFunnelfrom $30 a yearIncluded
Ebook and print formattingVellum Press$249.99 one-offIncluded
One world shared by every stage, so a change in Build reaches the plan, the draft and the reviewNot possibleIncluded
Continuity checked against your own lore, voices and timelineNot possibleIncluded
One login and one price for all of itNot possibleIncluded

Bought separately$6646 licences, first year

Mythener$270Author, billed yearly

Prices are each vendor’s own published price for one licence, first year. See every plan

Frequently asked questions about Mythener

What authors and publishers ask before they start.

Start free

Is my manuscript used to train AI?

No. We never use your writing to train AI models, and we do not let anyone else do so; Mythener uses only models whose terms do not allow training on your content. You own everything you put into Mythener: your manuscripts, worlds, plans and notes.

Does Mythener write my book for me?

No. You write the words. Mythener organises your world, plans and revisions, and the Delphi Engine gives recommendations about structure and continuity. You decide what changes in the manuscript and what becomes canon.

Why do you ask for a card, and what happens after 30 days?

You add a card when you choose a plan, and nothing is charged for the first 30 days. Cancel before then and you pay nothing. If you stay, your plan starts when they end, from $25 a month, $270 a year or $480 for 2 years, for one author. Your editor joins free. Your plan’s monthly Delphi scan begins with that first payment, and until then a scan costs $5; every other part of the workspace is open from the day you join.

What happens to my work if I cancel?

It stays yours. You can cancel anytime from your billing page, and you can export your projects and series at any time, including after you cancel. A cancellation takes effect at the end of the period you have paid for.

Do I have to start again, or can I bring in the books I have already written?

Bring them in. Drop an existing manuscript in Word (.docx) or EPUB format into the Workspace. Mythener maps out its chapters and picks out the lore it contains, so you link your existing world together instead of retyping it.

I already use Scrivener, Word or a spreadsheet. Why switch?

Because separate tools do not know about each other. In Mythener one world is shared by the plan, the draft and the review, so a change to a character reaches every book, and your manuscript is checked against your own lore. It does the work of 6 tools (Campfire, Scrivener, Plottr, ProWritingAid, BookFunnel, Vellum Press), which together cost about $664 in the first year; Author is $270.

How does Mythener check a manuscript for plot holes and continuity errors?

The Delphi Engine, inside the Edit module, runs 12 reviews and 145 checks across your manuscript. It compares dialogue against the voice profiles you set for each character, catches broken lore timelines and surfaces plot holes, using your world entries and chapter plans as the baseline. Every finding is pinned to the exact passage and carried into Review, so it sits beside the manuscript while you revise. It does not replace your editor: it gives each draft a structural and continuity read first, so an editor’s hours go further.

Does Mythener work for a press or a publisher with several authors?

Yes. Press has 8 author seats, House has 25 author seats, and Enterprise is priced to your volume. Editors, beta readers and admins join free. Every title on your list gets the same Delphi checks, protected ARC rounds, and ebook and print formatting.

Stop carrying the whole series in your head

Put the world, the plan and the manuscript in one place that remembers them, and get back to the part only you can do: the writing.

Start free

Cancel in your first 30 days and you pay nothing. Your manuscripts and worlds stay yours to export. See our Terms and Privacy Policy.