Mmdr

mmdr Plugin

Fast native Rust Mermaid diagram renderer — 500-1000x faster than mermaid-cli.

Commands

Render

• mmdr render svg — Render Mermaid diagram to SVG
• mmdr render png — Render Mermaid diagram to PNG

Usage Examples

• "Render a flowchart to SVG"
• "Convert mermaid diagram to PNG"
• "Pipe diagram through stdin"

Installation

cargo install mermaid-rs-renderer
# or
brew install mmdr

Examples

# Pipe to stdout (SVG)
echo 'flowchart LR; A-->B-->C' | mmdr -e svg

# File to file
mmdr -i diagram.mmd -o output.svg -e svg
mmdr -i diagram.mmd -o output.png -e png

# Render from Markdown
mmdr -i README.md -o ./diagrams/ -e svg

Supported Diagram Types

• Core: Flowchart, Sequence, Class, State
• Data: ER Diagram, Pie Chart, XY Chart, Quadrant Chart, Sankey
• Planning: Gantt, Timeline, Journey, Kanban
• Architecture: C4, Block, Architecture, Requirement
• Other: Mindmap, Git Graph, Packet, Radar, Treemap

Key Features

• 100-1400x faster than mermaid-cli
• No browser/Node.js required
• Zero dependencies
• 23 Mermaid diagram types
• SVG and PNG output
• Font caching for speed