TabGen: Free Windows App Converts Plain-English Prompts Into Tableau Dashboards

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TabGen is a free, locally-run Windows application that generates editable Tableau .twbx workbook files from plain-English descriptions and user-supplied data files such as CSVs, Excel sheets, or database connections. Users bring their own OpenAI or Anthropic API key, which is held only in session memory and never written to disk, while actual data rows remain on the user's machine. Unlike MCP server-based approaches, TabGen uses a deterministic pipeline that profiles data, validates field names against the real schema, and assembles a complete workbook from proven templates, reducing errors like hallucinated field names or broken calculations. The resulting workbook opens directly in Tableau Desktop or the free Tableau Public for further editing and publishing. The app requires no configuration, bundles its own Python runtime, and is available at tableaugen.com.

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