# OWOX Model Canvas — design data models on a free canvas

A free, anonymous web canvas for data people. Draw your data marts (tables, views, SQL or connector outputs) and joinable relationships, start from ready-made templates, see the business questions a model unlocks with AI, share it as a link, and push the whole thing into OWOX Data Marts in one click. No sign-in needed — an OWOX API key is only required to push.

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## What you can do

- Draw data marts and joinable relationships on a Miro-like canvas, with a field-level ERD view (columns, primary keys, join keys).
- Start from templates for real domains: E-commerce, SaaS, Marketplace, Marketing / Lead-gen, Mobile / Gaming, Finance, Healthcare, plus public datasets (Bitcoin, Stack Overflow).
- Import and export Open Knowledge Format (OKF) — a vendor-neutral Markdown bundle for data models, so your model stays portable and never locked in.
- Generate a model with AI: copy a short brief into Claude, ChatGPT or Gemini and import what it returns. See the AI build guide.
- Get Insight Questions: the business questions a model can answer, generated from schema metadata only — no row-level data leaves your browser.
- Share a model via a link that reopens your exact diagram, and push it into OWOX Data Marts as drafts.

## Frequently asked

Is it free? Yes — the whole canvas is free and works without signing in. An OWOX API key is only needed to push a model into OWOX Data Marts.

What is OKF? Open Knowledge Format is a vendor-neutral Markdown format for data models (a folder of `.md` files with YAML frontmatter). OWOX Model Canvas imports and exports OKF bundles so your model is portable across tools and git.

Do I need an account? No. You can design models, use templates, get AI question suggestions, and share a link anonymously.

Get started free with OWOX Data Marts →