A writing app for novelists who build worlds

Mycel keeps your chapters, characters, places and lore in one workspace. Your book is saved as plain Markdown files in a folder on your computer.

Windows and Linux first · One-time price · No account

The Mycel editor: a chapter of a fantasy novel with character names highlighted, a notes box and two margin notes, each joined to its passage by a thin line.

Notes sit in the margin, next to the words they belong to

Select a passage, add a question or a change note, and carry on writing. Each note stays level with its words and is joined to them by a thin line, like a proof sheet marked up by an editor. Open questions and change notes are collected on one page, so you can work through them chapter by chapter when the draft is done.

The mist came up the Silverwater an hour before dusk, and Marit knew the river was lying again. She stood at the helm of the last ferry and read the water the way other people read faces.

Far above them, where the cliffs closed in, a lantern had been lit that nobody on the ferry had hung. It burned without flicker, the pale gold of the Hollow Folk.

the river was lying again

Change: Plant this earlier: show the first lie in chapter 1, not only tell it.

a lantern had been lit that nobody on the ferry had hung

Question: Who hung it? Decide before chapter 4.

The annotations page, listing two open questions and two change notes with the passage each one belongs to.

One page for every open question

Every question and change note you leave is listed with its chapter and its passage. Mark one done, edit it or remove it, and jump straight back to the text.

Everything around the page

The editor stays quiet, and the tools you need while drafting are one click away.

The editor with the mouse over a name in the text: a card shows the character Marit, her role and her description.

Names link themselves

Write a character, place or lore name, or one of its aliases, and Mycel finds it. Hover over the name for a card with the profile, click it to open the entry.

The project search dialog with results for the word river across chapters and characters.

Search and replace across the whole book

Find a word in chapters, characters, places and lore at once. Replace it in the manuscript in one go, and step through the hits one by one.

A misspelled word underlined in the editor with a correction menu offering three suggestions, Ignore and Add to dictionary.

Spell checking that works offline

English and German, with wavy underlines and corrections on a right click. Names from your world are never flagged, and words you add stay with the project.

Focus mode: the manuscript text alone on a plain page, with only a small exit button in the corner.

Focus mode

One key hides everything but the text. Blinders mode fades the lines around the one you write in, and typewriter mode keeps that line in the middle of the screen.

Your world is part of the manuscript

Add characters, places and lore entries once. Mycel highlights their names in your chapters and opens the entry when you click one.

Profiles with aliases and relationships

Give each character a portrait, aliases, traits and links to other characters. A mention is found even when you write a nickname.

Places and lore, linked to each other

Organise places from continent to city, and keep magic, peoples, artifacts and religions in their own entries, each connected to the characters and places it touches.

A wiki entry for the character Marit with a portrait, role, properties and links to Ingrid, Lucan, Sable and Elias.
The relationship web: six character portraits connected by lines labelled with their relations, such as old friend and sworn protector.

The relationship web draws itself

Link two characters in their profiles and the web appears: portraits as circles, the relation on each line, arrows for one-way bonds. Drag the circles into the shape you like, hover one to see who it touches, click it to open the profile.

Places with pictures

Sort places by category, continent, region and city, and give each one an image.

The places page with cards for Ashgate, Blackspire, Harrow Bridge, The Golden Hall and The Silverwater Gorge, each with a photograph.

Lore, in its own entries

Peoples, magic, customs and organisations, each with aliases and a description.

The knowledge page with entries for the Hollow Folk, the Lantern Oath, the Pilots' Guild and the Veil.

A world map that fills the screen

Open your map in full screen, zoom into a coastline and pin every place you have written. Use any picture as the map: a painting, a scan, an export from a map tool.

The full-screen world map, an illustrated fantasy landscape of mountains, a volcano and rivers, with five pins, and a details card for The Golden Hall with a photograph, a kind picker and the chapters that mention it.
The same map zoomed in, with a chapter chosen in the toolbar: the place that chapter mentions is lit and the others are dimmed.
  • Pan with the mouse, zoom with the wheel, double-click to zoom in on a spot
  • Twelve kinds of pin: city, village, fortress, port, temple, ruins, cave, mountain, forest, battle, inn and landmark
  • Pick a chapter and see which places it visits, and which it never touches
  • Search for a place and fly straight to it; hide whole kinds with a click
  • Click a pin for its picture, description and the chapters that mention it
  • Drag a pin to move it, or choose an unplaced place and click the map to set it
The chapters page showing four chapter cards with status, point-of-view character and word goal.

Plan the book and watch it grow

Sort chapters into volumes, give each one a status, a point-of-view character and a word goal, and drag the cards into order. Set a goal for the whole manuscript and see your daily word count over time.

The statistics page with four figures, a bar chart of words written per day with an average line, a goal ring and a bar for every chapter.

A start page that knows where you stopped

Continue the chapter you edited last, see today's words and what is left to your goal.

The overview page: the latest chapter with its last lines and a Continue writing button, today's word count, three figures and the character portraits.

Lay out events on a timeline

Order events along an axis and link each one to the chapter where it happens.

A timeline with five events connected to the chapters of the book.

Every chapter keeps its history

Mycel saves a version of each chapter while you write: all of them for the last day, one a day after that, for as long as you choose. Open the history, read an older version next to the current one and restore it. Restoring keeps your current text as a version too, so you can always go back.

Files are written in a way that survives a crash: a power cut in the middle of a save never leaves half a chapter behind.

The history dialog of a chapter: a list of saved versions with dates and sizes, a preview of an older version and a Restore button.

Bring a manuscript in, send one out

Import chapters from Word, Markdown or plain text. Export the whole book as Word, PDF or an e-book, or as a standard manuscript for agents and publishers.

The Import and Export page: an import button for Word, Markdown or text, and export rows for Word, standard manuscript format, PDF and e-book.
The export dialog with a title, the Word format, the standard manuscript layout and an author name for the title page.
  • Standard manuscript format: Times 12 pt, double-spaced, title page with word count and a running header
  • Word headings become chapters on import; nothing in your project is overwritten
  • PDF and EPUB follow the language of the project, so a book in English has no German word in it

A light or a dark theme, in English or German

Choose the colours, the font and the size of the text that suit your eyes, and switch the interface between English and German. Each project has its own language, which sets the default words and the language of its exports.

The editor in the dark theme showing a chapter with highlighted names and a margin note.
The relationship web in the dark theme.

Your book is a folder of text files

Chapters, characters, places and lore are Markdown files in a folder you choose. Open them in any editor, keep them in Dropbox or Syncthing, and export to Word, PDF or EPUB when you need to.

There is no account and nothing is uploaded. This site sets no cookies and has no analytics either.

Ashes-of-the-Silverwater/
├── Chapters/
│   ├── the-last-ferry.md
│   └── a-letter-from-court.md
├── Characters/
│   └── marit.md
├── Places/
│   └── silverwater-gorge.md
├── Knowledge/
│   └── the-veil.md
├── Media/
└── .mycel/project.json
---
name: "Marit"
role: "Protagonist"
aliases: ["Mar", "the Pilot"]
relationships: [{"target":"elias",
                 "type":"old friend"}]
---

A river pilot who knows the Silverwater
better than anyone and trusts it less.

One price. No subscription.

Buy Mycel once and keep it. Your files stay plain text whether you keep using Mycel or not.

  • Every feature included, no tiers
  • Free updates for all 1.x versions
  • Windows and Linux at launch, macOS to follow
  • Works fully offline

$59.99

one-time purchase

Get launch news

Launch price. Taxes may be added at checkout.

Questions

Does Mycel need an internet connection?

No. Writing, spell checking, the map and exports all work offline.

Where are my files?

In a folder you choose. Chapters, characters, places and lore are Markdown files; the project settings, the map pins and the version history are small files in a hidden .mycel folder next to them.

Can I get my book out of Mycel?

Yes. The chapters are plain Markdown, and Mycel exports to Word, PDF and EPUB.

Can I import from Word or Scrivener?

Word, Markdown and plain-text files import as chapters. Importing a Scrivener project is not available yet.

Can I use my own map?

Yes. Any image works: PNG, JPG, WebP or SVG. Put it in the project and choose it as the map, then pin your places on it.

Which computers does it run on?

Windows and Linux first. A macOS version follows.

Which languages does it support?

The interface and the spell checking support English and German.

Is there a subscription?

No. You pay once.