Diagrams

Diagram Maker

Online diagram maker and AI diagram generator — create flowcharts, sequence diagrams, class diagrams, ER diagrams, mind maps, Gantt charts, and UML. Supports Mermaid, Graphviz DOT, and PlantUML with embed and PNG/SVG export.

Prompt to Diagram
Text to diagram in seconds

Describe steps, entities, or sequences; the AI generates structured diagrams automatically. Keywords: online diagram maker, AI diagram generator, text to diagram.

Mermaid, DOT, PlantUML
Code import and export

Paste Mermaid or Graphviz DOT, and use PlantUML syntax where supported. Convert prompts to code and back for full control and reproducibility.

Diagram Types
Flowchart, Sequence, Class, ER, UML

Build flowcharts, sequence diagrams, class diagrams, ER diagrams, mind maps, Gantt charts, and general UML with auto layout and labeling.

Embed & Export
URL/iframe, PNG/SVG, CDN

Embed via URL or iframe, or export PNG/SVG for docs and reports. Automate updates with an API flow and deliver via global CDN.

Usage

How It Works

Create diagrams from prompts or diagram code in minutes.

1. Enter a Prompt
Describe your diagram

Write “User onboarding flow with decision steps” or “Class diagram for e‑commerce.” The AI creates nodes, edges, and labels automatically.

2. Use Mermaid/DOT/PlantUML
Import or edit code

Paste Mermaid, Graphviz DOT, or PlantUML. Convert between text and code, then fine‑tune structure and styling.

3. Customize & Publish
Layout, labels, export

Adjust layout, spacing, and labels. Export PNG/SVG or embed via URL. Automate updates with an API and CDN caching.

FAQs

Frequently Asked Questions

Answers to common questions about the diagram maker.