Diagrammer: Tell the model, get the diagram or the graphical map (github.com)

A new open-source tool called Diagrammer has been launched, enabling users to create and view diagrams generated by large language models (LLMs) directly in their browsers without the need for cloud storage or account sign-ups. This local-first, schema-driven viewer processes input as JSON documents, allowing users to generate various diagram types—including mind maps, flowcharts, and ER diagrams—automatically laid out according to the specified type. The interface provides functionality for pasting and dragging elements within a zoomable, pannable canvas, enhancing user experience with easy editing options. This tool is significant for the AI/ML community as it liberates users from vendor lock-in and proprietary formats commonly associated with diagramming solutions. By using a straightforward JSON schema, Diagrammer offers a transparent and customizable approach to diagram creation and editing. For LLM developers and users, it provides a simple way to interface with a standardized authoring skill that can generate diagrams based on user prompts. Future plans for added features and persistent storage hint at rising adoption and usability, appealing to those looking for flexible and local solutions in data visualization.