1
Sign up
Go to octonote.ai and continue with Google, Apple, or your email (we send a 6-digit code). Octonote creates your workspace.
2
Write a note
Open Notes and create one. Type
/ for blocks: headings, lists, code, an Equation, a Mermaid diagram and more. Everything saves as you type. See Notes.3
Draw on a canvas
Open Canvases and create one. Turn on Auto-shape and rough pencil strokes snap into clean boxes, circles and arrows. See Canvases.
4
Put them side by side
A project is one note and one canvas together. Group shapes into a figure and drag it into the note. See Projects.
5
Publish it
Click Share, turn on Publish to web, and copy the public link. Anyone can read it, no account needed. See Publishing.
Let your agent do the first draft
If you use Claude Code or Codex, connect them once and ask them to write for you:Explain how our auth flow works, with an architecture diagram, and publish it.See Octonote for agents.