OWOX Model Canvas

About

A complimentary, anonymous platform for creating data models, featuring a visual workspace for Google's Open Knowledge Format (OKF). While Google released only a viewer, this tool provides the full authoring environment. Design tables and relationships manually or with AI assistance, then generate a portable, version control compatible data model that large language models can interpret directly, eliminating schema guesswork in text to SQL processes. It includes access to Google's official GA4, Stack Overflow, and Bitcoin sample datasets. The service is free, open source, and does not require any registration.