Create diagrams from code with this online editor. Supports Mermaid and PlantUML syntax for flowcharts, sequence diagrams, and more. Features real-time preview and SVG/PNG export.
Features
Mermaid Diagrams
PlantUML Diagrams
Multi-format Export
+1 more features
Usage Examples
Basic Usage
Diagram Tools Usage Example
Usage Steps:
Select Type - Choose between Mermaid or PlantUML diagram types
Choose Template - Select an appropriate diagram template from the presets to get started
Write Code - Enter or modify the diagram code in the code editor
Real-time Preview - View the real-time rendering effects of your diagram as you type
Export Diagram - Export the finished diagram as an SVG or PNG file
Features:
Mermaid Support - Supports flowcharts, sequence diagrams, class diagrams, Gantt charts, and more
PlantUML Support - Supports use case diagrams, activity diagrams, component diagrams, sequence diagrams, etc.
Real-time Preview - Automatically re-renders after code modification, providing a WYSIWYG experience
Template Library - Built-in common diagram templates for a quick start
Multi-format Export - Supports SVG vector format and PNG bitmap format
Syntax Help - Built-in syntax help for quickly learning the diagram syntax
Use Cases:
System Design - Draw system architecture diagrams and flowcharts for planning
Requirements Analysis - Create use case diagrams and activity diagrams to define needs
Project Management - Create Gantt charts and project timelines to track progress
Code Documentation - Generate class diagrams and component diagrams for code projects
Business Process Modeling - Organize and visualize complex business processes
Teaching & Demos - Create educational diagrams and illustrations for presentations