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Diagram Tools
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Online diagram drawing tool supporting Mermaid and PlantUML syntax

Features

Mermaid
PlantUML
Multi-format Export
+1 more features

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Diagram Tools
Diagram Type:
Template:
Code Editor
Code Length: 0 common.characters
Preview

Diagram preview will be displayed here

Help

Common Syntax

  • β€’ graph TD - Top-down Flowchart
  • β€’ sequenceDiagram - Sequence Diagram
  • β€’ classDiagram - Class Diagram
  • β€’ gantt - Gantt Chart

Node Shapes

  • β€’ A[矩归] - Rectangle
  • β€’ B(εœ†θ§’ηŸ©ε½’) - Rounded Rectangle
  • β€’ C{菱归} - Diamond
  • β€’ D((εœ†ε½’)) - Circle

Usage Examples

Basic Usage

Diagram Tools Usage Example

Usage Steps:

  1. Select Type - Choose Mermaid or PlantUML diagram type
  2. Choose Template - Select appropriate diagram template from presets
  3. Write Code - Enter or modify diagram code in the code editor
  4. Real-time Preview - View real-time rendering effects of the diagram
  5. Export Diagram - Export diagram as SVG or PNG format

Supported Formats:

  • Mermaid Support - Support flowcharts, sequence diagrams, class diagrams, Gantt charts, etc.
  • PlantUML Support - Support use case diagrams, activity diagrams, component diagrams, sequence diagrams, etc.
  • Real-time Preview - Auto-render after code modification, WYSIWYG
  • Template Library - Built-in common diagram templates for quick start
  • Multi-format Export - Support SVG vector format and PNG bitmap format
  • Syntax Help - Built-in syntax help for quick learning of diagram syntax

Use Cases:

  • System Design - Draw system architecture diagrams and flowcharts
  • Requirements Analysis - Create use case diagrams and activity diagrams
  • Project Management - Create Gantt charts and project timelines
  • Code Documentation - Generate class diagrams and component diagrams for code projects
  • Business Process - Organize and visualize business processes
  • Teaching Demo - Create educational diagrams and illustrations