Diagramming AI

Diagramming AI lets users generate diagrams from natural-language prompts or notes across multiple diagram engines (Mermaid, PlantUML, GraphViz, D2, and Excalidraw). Users can refine diagrams through an AI chat with Discussion and Update modes, see live previews, and use an Excalidraw visual editor to convert text-based diagrams into editable canvases. The page also describes project-based storage of diagrams, SVG/PNG and shareable URL export via a Kroki integration, color themes, URL and image input, templates, and an AI connection option for ChatGPT, Claude, or other compatible AI apps (beta). Pricing is listed as Free ($0), Starter ($6/month), and Pro ($14/month) with differing credit, project, and input limits.

Key features

• AI-powered diagram generation from text input
• AI chat with Discussion Mode and Update Mode for edits
• Live diagram preview
• AI-powered error detection and resolution for Mermaid, PlantUML, Graphviz, and D2
• Quick Edit for adjusting size and style of diagram parts
• Excalidraw visual editor (V-Edit) for Mermaid, PlantUML, and Graphviz diagrams
• Project-based storage of Mermaid, PlantUML, Graphviz, D2, and Excalidraw diagrams
• Notes per diagram
• Export to SVG/PNG and shareable URLs via Kroki integration
• Color themes for Mermaid, PlantUML, and 48 Excalidraw presets
• URL to Diagram and Image to Diagram input (URL input on paid plans)
• Diagram templates for mermaid.js and PlantUML
• AI-powered infographics via Excalidraw integration (page lists this feature)
• Read-only public share links for saved diagrams

Best suited for

• Software developers explaining system design and timelines
• Project managers visualizing Gantt charts and schedules
• Data analysts mapping data flows and processes
• Educators and trainers explaining complex topics
• Technical writers adding diagrams to documentation
• Business analysts creating flowcharts
• Product managers showcasing feature flows and user journeys
• Researchers presenting structured diagrams
• Students mapping concepts into visual models
• Marketing professionals outlining campaign strategies

Pricing

Free ($0), Starter ($6/month), Pro ($14/month); plans differ in credits, projects, diagrams per project, and input character limits, with URL and image input on paid plans