Mermaid Online Editor

Mermaid Flowchart

Create professional flowcharts to visualize processes and workflows. Use our real-time editor to design decision trees, process maps, and system flows.

Code

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Quick Syntax Reference

Master the basic syntax for creating flowcharts with these common patterns.

Node DefinitionDefine different node shapes
A[Square] --> B{{Rounded}} B --> C([Stadium]) C --> D[(Database)]
Arrow TypesVarious arrow styles
A --> B A --> C A -.-> D A ==> E A --text--> F
DirectionSet diagram direction
flowchart TB A --> B flowchart LR A --> B
SubgraphsGroup nodes together
subgraph Subtitle [Title] A --> B end C --> Subtitle
StylingApply CSS styles
style A fill:#f9f,stroke:#333,stroke-width:4px classDef red fill:#f96 class A,B red
Click EventsAdd interactivity
click A callback "Tooltip" click B "http://example.com" "Open link"

Use Cases

Flowcharts are versatile tools used across industries to visualize processes and decision-making paths.

Process Documentation

Document business processes, workflows, and standard operating procedures.

Algorithm Design

Map out logic flows and decision trees in software development.

Decision Making

Create decision trees to visualize choices and outcomes.

User Flows

Design user journeys and navigation paths in applications.

System Architecture

Illustrate system components and their interactions.

Training Materials

Create visual guides for training and onboarding.