Every great world breaks the same way: quietly.
A character ages wrong between seasons. A rule established in episode two gets contradicted in episode nine. Nobody decided to break canon — it just lived in too many places to hold.
The world bible problem
If you develop serialized IP — television, animation, film franchises, game narrative, or a novel series — your world bible currently lives in Notion, in Google Docs, on a physical whiteboard, and in two notebooks you'd save from a fire. When a character decision is made in episode four — or chapter four — the writer on episode seven may not find out until the table read. The novelist three books deep finds out in a one-star review.
The existing tools weren't built for this. Writing apps start when the world is already supposed to hold. Wikis and worldbuilding databases store what you've figured out — they never check it. Nothing on the market actively interrogates whether your world is internally consistent before you spend a season writing against it.
CanonBoard is that missing layer: the shared, living source of truth that stress-tests your logic while you build it.
- A world logic engineAn open infinite canvas where the logic, rules, characters, and threads of your world live as connected cards.
- A stress testConflict Detection runs an AI scan across your full world on demand and surfaces every continuity break with an explanation. Available on Core and above; 1 credit per scan.
- A thinking toolRefine interviews you one question at a time and organizes what you already know into structured canon.
- A single source of truthLive cursors, role permissions, change history. The whole team works from one board.
- Not a writing appNo manuscript editor, no prose tools, no sentence-level anything. You write where you write.
- Not a ghostwriterThe AI never generates story content and never suggests plot decisions. It asks. You answer. That's the whole deal.
- Not a wikiStorage is table stakes. A filing cabinet doesn't tell you the file in drawer three contradicts the file in drawer nine.
- Not a note-taking toolNotion is great at being Notion. CanonBoard is purpose-built for story architecture — cards know they're characters, rules, and threads.
The AI doesn't write for you. It interviews you — and organizes what you already know.
Your voice is the product. Ours would just be in the way.
Built for the people who keep canon professionally
Screenwriters and showrunners. TV writers' rooms working from one source of truth. Indie IP developers building original animation, film, and game narrative. And alongside them: novelists with series to protect, game studio narrative teams, tabletop designers, and comic creators with continuity measured in years.
The free plan is a complete structural product — canvas, relationship mapping, geography, timeline, and bible export. Not a trial. AI features — Conflict Detection, Refine, and Smart Import — start on Core. If you build worlds, you can start today and never pay us. We're betting your world outgrows one project.