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mermaid

Create and render Mermaid diagrams inside Markdown via fenced code blocks.

Updated Apr 25, 2026
Search Tags:#documentation#markdown#mermaid#rendering#visualization#diagrams
One-click install
npx skills add https://github.com/shekerkamma/markdown-viewer-skills-audit --skill mermaid-shekerkamma
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mermaid
Source: https://github.com/shekerkamma/markdown-viewer-skills-audit/tree/main/mermaid
Command: npx skills add https://github.com/shekerkamma/markdown-viewer-skills-audit --skill mermaid-shekerkamma

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Creating clear, editable diagrams for documentation usually requires separate tools or images; Mermaid provides a lightweight, text-based approach that renders diagrams directly in Markdown.

Core Features & Use Cases

  • Supports a wide range of diagram types (flowchart, sequence, class, state, ER, Gantt, mindmap, C4, and more) using a simple fenced code block syntax.
  • Renders natively in GitHub, GitLab, Obsidian, VS Code, Notion, and other modern Markdown viewers, enabling consistent visuals across platforms.
  • Ideal for documenting software architecture, data flows, processes, and validation diagrams inline with code and docs.

Quick Start

Wrap your Mermaid diagram source in a fenced code block labeled mermaid.

Frequently Asked Questions about mermaid

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

FAQPage Schema
How do I render Mermaid diagrams directly in Markdown?▼

To render Mermaid diagrams in Markdown, wrap your diagram source code inside a fenced code block labeled with the mermaid keyword. This allows platforms like GitHub and Obsidian to natively parse and display the visualization inline with your text.

Does Obsidian support Mermaid diagram rendering?▼

Yes, Obsidian supports Mermaid diagram rendering natively along with GitHub, GitLab, VS Code, and Notion. You can create flowcharts, sequence diagrams, and data models directly in your Markdown documents without needing external image files.

What is the best way to document software architecture in Markdown?▼

The best way to document software architecture in Markdown is using Mermaid's text-based diagramming approach. It supports flowcharts, C4 diagrams, and ER diagrams within fenced code blocks, providing lightweight and editable visuals directly alongside your code.

What types of diagrams can I create using Mermaid in Markdown?▼

You can create a wide range of diagrams in Markdown using Mermaid, including flowcharts, sequence, class, state, ER, Gantt, mindmap, and C4 diagrams. This covers most software architecture, data flow, and process visualization needs.

Why are my Mermaid diagrams not rendering in Markdown viewers?▼

Mermaid diagrams fail to render if the Markdown viewer lacks native Mermaid support or if the syntax is incorrect. Ensure you are using a compatible viewer like GitHub, GitLab, or VS Code, and that your diagram source is inside a properly labeled fenced code block.

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