Markdown & Mermaid Preview
Write Markdown with live preview and embedded Mermaid diagrams. Create flowcharts, sequence diagrams, and more - then export to PDF, PNG, or JPG. All processing happens in your browser.
Preview will appear here...
Quick Usage Guide
Type or paste your Markdown content in the editor. Use standard Markdown syntax for headings, lists, code blocks, and more.
Create diagrams using ```mermaid code blocks. Supports flowcharts, sequence diagrams, class diagrams, and more.
Download as PNG, JPG, or PDF. Perfect for documentation, presentations, or sharing diagrams.
Mermaid Diagram Examples
Flowchart
Create flow diagrams to visualize processes and decision trees.
```mermaid
flowchart TD
A[Start] --> B{Decision}
B -->|Yes| C[Action 1]
B -->|No| D[Action 2]
```Sequence Diagram
Show interactions between components over time.
```mermaid
sequenceDiagram
Alice->>Bob: Hello!
Bob-->>Alice: Hi there!
```Class Diagram
Document object-oriented designs and relationships.
```mermaid
classDiagram
Animal <|-- Dog
Animal : +name
Dog : +bark()
```Gantt Chart
Plan projects with timeline visualizations.
```mermaid
gantt
title Project Plan
section Phase 1
Task 1: 2024-01-01, 7d
Task 2: 5d
```Supported Diagram Types
| Type | Syntax | Use Case |
|---|---|---|
| flowchart | flowchart TD/LR | Process flows, decision trees |
| sequenceDiagram | sequenceDiagram | API calls, user interactions |
| classDiagram | classDiagram | OOP design, data models |
| stateDiagram | stateDiagram-v2 | State machines, workflows |
| erDiagram | erDiagram | Database schemas |
| gantt | gantt | Project timelines |
| pie | pie | Data distribution |
| gitGraph | gitGraph | Git branching visualization |
Common Use Cases
Technical Documentation
Create README files, API docs, and architecture documentation with embedded diagrams that update automatically.
Presentations
Export diagrams as images for slides, or use the preview directly for live demos and technical presentations.
Team Collaboration
Share exported diagrams with stakeholders or copy the Markdown to paste into GitHub, GitLab, or Notion.
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