---
title: "Mermaid CLI Diagram-as-Code Renderer"
description: "Mermaid CLI (mmdc) is the command-line interface for the Mermaid diagramming library. It converts text-based diagram definitions into SVG, PNG, and PDF output files, enabling automated diagram generation from code."
verification: "security_reviewed"
source: "https://github.com/mermaid-js/mermaid-cli"
category:
  - "Image & Creative Automation"
framework:
  - "Multi-Framework"
tool_ecosystem:
  github_repo: "mermaid-js/mermaid-cli"
  github_stars: 4341
---

# Mermaid CLI Diagram-as-Code Renderer

Mermaid CLI (mmdc) is the command-line interface for the Mermaid diagramming library. It converts text-based diagram definitions into SVG, PNG, and PDF output files, enabling automated diagram generation from code.

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/mermaid-cli-diagram-as-code-renderer/)