← PROSEIDON

The infinite canvas

The Board

An infinite canvas for your whole story — scenes, characters, files and images, with the connections drawn between them.


The board is for any kind of visual thinking. Make moobboards, reference boards, branching plots and connect it the way it connects in your head.

Everything is a node

Scenes, characters, notes, images, files — drop anything on the canvas. Open a document right there and edit it in Markdown, in place. Group what belongs together.

A Proseidon board mid-brainstorm: cards, notes, images and characters across the canvas.
Ideas spread out where you can see them.

Connect and name it

Draw a line between any two nodes and label the relationship in plain words — best friend of, betrays him here, mother of.

Character cards on a board joined by labelled relationship lines.
Relationships, drawn and labelled.

Lay out the whole shape

Pan and zoom across the entire story. Group the beats of an act, line up the outline, and see where it sags.

A board used to outline a story's structure across acts.
The whole shape, before you commit to it.

Also on the canvas

Shapes & drawing

Frame and annotate with rectangles, arrows and text, or draw freehand on the canvas.

Character cards

An entity sits on the board as a card with its key fields, linked to its wiki page.

Nested boards

Drop a whole board inside a node — a sub-board for an act or a subplot.

Files & images

Drag in photos, references and files and keep them beside the words.

Recolour

Colour-code nodes and the lines between them so the board reads at a glance.

Built for scale

Hundreds of images on one board with no lag.

A Notice from the Publisher

Start Writing.

Free, offline, and yours to keep. Bring a first idea; leave with a manuscript.

Download Proseidon

Choose your platform below

  • Windows

    Download

    EXE · 105.8 MB

  • macOS

    Coming soon

    Build in progress

  • Linux

    Download

    AppImage · 129.6 MB

    also: tar.gz

Version 0.9.6 · Free forever · Offline · All releases on GitHub

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