Diagramming AI: Create UML & Flowcharts with AI Chat

Diagramming AI reimagines how technical diagrams get made by letting users simply describe what they want and watch AI generate professional flowcharts, sequence diagrams, ER diagrams, and dozens of other formats in seconds. Instead of manually dragging shapes or memorizing syntax, you converse with an AI chat assistant that suggests improvements, resolves errors, and applies real-time edits directly to your diagram. The platform bridges the gap between code-based diagramming tools like Mermaid, PlantUML, and Graphviz and visual editors, offering an integrated Excalidraw canvas for hands-on drag-and-drop fine-tuning. Beyond generation, the tool organizes work into projects that store diagram code and visual edits together, supporting flexible export to SVG, PNG, or shareable URLs. Unique conveniences like URL-to-diagram and image-to-diagram conversion mean you can pull structure from existing web pages or screenshots rather than starting from scratch. With customizable color themes and a library of templates, Diagramming AI serves as a versatile companion for anyone who needs to communicate complex systems, processes, or data relationships visually without the usual friction of traditional diagramming software.

Start by describing the diagram you envision in plain language and let Diagramming AI generate the initial draft. Use the AI chat panel to request refinements, ask for suggestions, or fix errors—changes apply instantly to the diagram. Switch to the Excalidraw visual editor for manual drag-and-drop adjustments, then organize your work into projects with stored diagram code. When finished, export your creation as SVG, PNG, or a shareable URL.