ModelViz
free previewWeb app that parses Power BI and Microsoft Fabric semantic model archives and renders interactive ERD, star schema, lineage, and RLS diagrams.
- Category
- semantic-modeling
- Type
- web-app
- Language
- TypeScript
- Maintainer
- community
- Author
- Ross Farrell
- Added
- Jun 9, 2026
What it does
ModelViz is a web application for visualizing Power BI and Microsoft Fabric semantic models. You upload an exported .SemanticModel .zip archive and it parses the TMDL in the browser, then renders interactive diagrams for relationships (ERD), star-schema structure, data-source lineage, and RLS roles, alongside a model summary of tables, measures, columns, and relationships. It detects storage modes (Import, DirectQuery, Direct Lake, and composite) and includes an obfuscation toggle for sharing without exposing sensitive names.
Why use it
Use it to quickly understand or document a semantic model’s structure, lineage, and security without opening it in a full modeling tool, and to share readable diagrams with others.
Getting started
Open the app at https://modelviz-alpha.vercel.app/ and upload an exported .SemanticModel .zip (the archive Power BI and Fabric produce, containing model.tmdl, relationships.tmdl, and table definitions). The project is in alpha; see the GitHub repository for source and notes.