mermaid-chart

Generate Mermaid diagrams as .mmd files and render them to .png images.

1|Updated Sep 9, 2025
One-click install
npx skills add https://github.com/emaginebr/zTools --skill mermaid-chart-emaginebr
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mermaid-chart
Source: https://github.com/emaginebr/zTools/tree/main/.claude/skills/mermaid-chart
Command: npx skills add https://github.com/emaginebr/zTools --skill mermaid-chart-emaginebr

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @mermaid-js/mermaid-cli, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill automates the creation of visual diagrams from text-based Mermaid syntax, making complex information easier to understand and share.

Core Features & Use Cases

  • Mermaid Diagram Generation: Creates .mmd files for various diagram types (flowcharts, sequence diagrams, ER diagrams, etc.).
  • PNG Image Rendering: Automatically converts .mmd files into .png images for easy embedding and sharing.
  • Use Case: You need to document a complex system architecture. Use this Skill to generate a C4 diagram from a textual description, producing both the source file and a visual PNG.

Quick Start

Create a flowchart named 'user-login-flow' that shows the steps for a user logging into a system.

Frequently Asked Questions about mermaid-chart

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate a flowchart and save it as a PNG from text?▼

To generate a flowchart and save it as a PNG, you provide text-based Mermaid syntax to create a `.mmd` file, which is then automatically rendered into a `.png` image using the Mermaid CLI for easy sharing.

Can I render sequence diagrams and ER diagrams as images using Mermaid syntax?▼

Yes, you can render sequence diagrams, ER diagrams, and all other Mermaid diagram types as `.png` images. The tool validates the syntax and converts the `.mmd` source files into visual graphics.

What is the best way to document system architecture with Mermaid diagrams?▼

The best way to document system architecture with Mermaid diagrams is to generate a C4 diagram from a textual description, producing both the `.mmd` source file and a visual `.png` image for embedding.

Does Mermaid CLI support automatic PNG conversion for Gantt charts?▼

Yes, Mermaid CLI supports automatic PNG conversion for Gantt charts. The process creates a `.mmd` file from your syntax and renders it directly into a `.png` image with robust error handling for failures.

Why does my Mermaid diagram fail to generate a PNG image?▼

Your Mermaid diagram fails to generate a PNG image when there are syntax validation errors. The generation process includes robust error handling that catches syntax issues before and during image rendering.

Can I specify the output directory for rendered Mermaid PNG files?▼

Yes, you can specify the output directory for rendered Mermaid PNG files. The process ensures that output files are correctly named and placed in the exact directory you define during generation.