Open-source · Cross-platform · No install required

The Modern
Tabular Model Designer

A powerful, browser-based alternative to Tabular Editor for Power BI and SSAS. Edit model.bim files, write DAX with IntelliSense, visualize relationships, and deploy — all from your browser.

Everything you need for tabular modeling

A complete toolkit for Power BI and SSAS developers, built for the modern web.

TOM Explorer

Hierarchical tree view of all model objects — tables, columns, measures, hierarchies, relationships, roles, and more. Multi-select, rename inline, drag-and-drop reorganization.

DAX Editor

Monaco-powered editor with custom DAX syntax highlighting, IntelliSense completions from your model, code formatting, and hover documentation.

Visual Diagram

Interactive relationship diagram with auto-layout. See table columns, measures, data types, cardinality, and cross-filter direction at a glance.

AI Assistant

Built-in Claude-powered chat that understands your model. Ask questions, generate DAX, and apply AI-suggested changes with a single click.

Power BI Deploy

Connect to Power BI Service via XMLA endpoint and deploy changes directly. Full round-trip: read, edit, and push back to the service.

Cross-Platform

Runs entirely in the browser — Windows, macOS, Linux, ChromeOS. No installation, no desktop app. Open a .bim file and start editing.

How it works

Get started in seconds — no installation, no sign-up required.

1

Open

Open a local model.bim file or connect to Power BI Service via XMLA endpoint.

2

Edit

Use the TOM Explorer, DAX Editor, Visual Diagram, and AI Assistant to make changes.

3

Deploy

Save back to file or deploy directly to Power BI Service with a single click.

Intelligent DAX Editing

A full-featured code editor built on Monaco — the same engine that powers VS Code.

  • Custom DAX syntax highlighting with Monarch tokenizer
  • Context-aware IntelliSense that knows your tables, columns, and measures
  • Hover documentation showing data types, expressions, and descriptions
  • Code formatting and multi-line expression editing
DAX Editor screenshot

Visual Relationship Diagram

Understand your model at a glance with an interactive, auto-laid-out diagram.

  • See all tables, columns, and relationships in one view
  • Automatic layout with dagre algorithm — horizontal or vertical
  • Cardinality labels, cross-filter direction indicators, and key icons
  • Click any table to navigate, zoom and pan to explore large models
Diagram View screenshot

Ready to modernize your tabular workflow?

Start editing your Power BI and SSAS models in the browser — no download, no setup, totally free.