Draw it, then make it real.
A whiteboard where every blueprint is a live node drawn from its file, with frames, labelled flows, and sticky notes around it. When a sketch earns a page, it becomes a blueprint.
Free for macOS, Windows, and Linux. No account, no subscription.
Live nodes
Blueprints, drawn from their files
Each blueprint node reads from its file and writes back to it. Shape and colour come from your properties, so a status reads at a glance across the page.
- Title, summary, and properties from the file
- Styled by property, in Canvas settings
- Edits from a node write to the blueprint
Sketch to blueprint
Sketch first, promote later
A sketch is an idea that isn’t a blueprint yet. When it earns a page, Promote to blueprint makes the file from the usual template. The node keeps its place and its flows.
A whole toolset
Sketches, stickies, text, annotations, frames that carry what’s inside them, and elbow flows with labels, arrowheads, and dashes. Each tool is one key, a canvas can have many pages, and undo survives a save.
An open file, and open formats
Each canvas is one YAML file with a published schema, so an agent can edit it and the page follows. Export a page as PNG, SVG, or JSON Canvas for Obsidian. Share a canvas with the team or keep it to yourself.
How it connects
The canvas draws what the files say.
A canvas never copies a blueprint. It holds only what a blueprint can’t: the layout, the frames, and the flows between them.
- Blueprints
A node is a blueprint by its permanent id, and a promoted sketch becomes one.
- Comments
Comment pins on a node or a page move with the node.
- AI Agent
An agent edits the canvas file against its schema. Promoting a sketch stays a person’s choice.
- Git
A canvas is a file, committed with the blueprints it draws.
From the shell
A canvas is a file
Readable by a person, editable by an agent, and checked like everything else.
$ eidos canvas show a-viewer-s-evening
title: A viewer's evening
pages:
- id: watching
title: From sign-in to the credits
nodes:
- id: resume
blueprint: B-V63
- id: continue-row
sketch:
label: Continue watching row
…Write down what you’re making.
Download Eidos MD, open a folder, and start from the framework closest to your work. You can reshape it all later.
Free for macOS, Windows, and Linux. Your files stay plain text in a folder you own.