Diagramming AI

Diagramming AI creates and edits diagrams from text, notes, URLs and images with Mermaid, PlantUML, GraphViz, D2 and Excalidraw. Templates, exports and read-only sharing included.

AI Design Assistant AI Diagram Generator

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Overview

Diagramming AI is an AI diagram generator for Mermaid, PlantUML, GraphViz, D2, and Excalidraw. It turns plain English, notes, URLs, and images into diagrams such as flowcharts, UML, sequence diagrams, workflows, system maps, and architecture diagrams.

The product combines prompt-based creation with chat-driven refinement, quick edits, template-based starting points, project storage, and shareable read-only links. It is designed for people who want to draft or update technical and process diagrams without rebuilding them manually each time.

Features

AI diagram generation

Generate diagrams from plain English or pasted notes, then build flowcharts, sequence diagrams, workflows, system maps, and other visual formats from the same prompt-driven workflow.

AI chat for discussion and edits

Use two chat modes: Discussion Mode for suggestions and refinement, and Update Mode for direct diagram edits through chat.

Error detection and repair

Fix diagram errors automatically across supported engines, with the product interpreting error messages and applying corrections for Mermaid, PlantUML, Graphviz, and D2.

Quick edit and visual editing

Adjust diagram size and style with Quick Edit controls, or move text-based diagrams into Excalidraw for drag-and-drop visual editing.

Project storage and sharing

Store multiple projects, keep diagram notes, save text-based code and Excalidraw edits together, and share read-only public links for review.

Templates and export options

Export diagrams as SVG or PNG and via shareable URLs, and start from templates for common diagram types and architectures.

Use Cases

Create technical diagrams from text
Draft flowcharts, sequence diagrams, and architecture diagrams from a short prompt instead of building them from scratch.
Refine diagrams iteratively
Use the chat modes to ask for layout changes, fixes, or formatting adjustments after the first version is generated.
Work from diagram templates
Start from Mermaid or PlantUML templates when you want a known structure for common patterns such as class diagrams, use case diagrams, or deployment diagrams.
Switch into visual editing
Move text-based diagrams into Excalidraw for drag-and-drop visual editing when you need more direct control over the final layout.
Organize and review diagram work
Save diagrams in projects, keep notes with them, and share a read-only link for review or feedback.

Pros and Cons

Pros

Supports several common diagram engines in one tool, including Mermaid, PlantUML, GraphViz, D2, and Excalidraw.
Combines AI generation with chat-based refinement and direct updates.
Includes error correction, quick edits, and template-based starting points.
Supports project-based storage, notes, exports, and read-only sharing.
The gallery suggests a large template library across multiple diagram types.

Cons

The pricing page is not available in the provided source, so pricing structure and limits are unclear.
The source does not confirm full team collaboration or admin features beyond sharing read-only links.

FAQ

How do you start a diagram in Diagramming AI?

Yes. The product supports creating diagrams from plain English, notes, pasted text, URLs, and images, then refining them through AI chat and edits.

Which diagram formats does it support?

The source shows support for Mermaid, PlantUML, GraphViz, D2, and Excalidraw, with templates and editing workflows for each.

Can you organize and share diagrams with others?

The site says you can save diagrams in projects, keep notes, and share a read-only public link for review.

Is it suitable for team workflows?

The gallery and homepage show template libraries and read-only sharing, but the available source does not confirm deeper team-admin features or collaboration controls.