# Mermaid Diagrams (ChatGPT Plugin)

> Create Mermaid diagrams

- Type: plugin
- Publisher: Benjamin Michael Haire
- Categories: Development
- Website: https://chatgpt.com/plugins/plugins_6a87bb246c908191b3e24054006a5446
- Open in ChatGPT: https://chatgpt.com/plugins/plugins_6a87bb246c908191b3e24054006a5446
- Version: 2.1.0
- Listed: 2026-10-15

## About

Author, import, safely edit, preview, repair, and validate deterministic Mermaid diagrams and multi-diagram Markdown, including architecture, Gantt, timeline, and Kanban builders, with optional local rendering when requested.

## Install

1. **Add it in ChatGPT** Open Plugins in the ChatGPT sidebar (web or desktop), search for “Mermaid Diagrams” and select +. You'll be asked to sign in to any connected service on first use. Then type @ in a chat to call it.

## Disconnect or uninstall

1. **In ChatGPT** Disconnect an account in Settings → Apps or Plugins. To remove the plugin itself, open Mermaid Diagrams in the Plugin Directory and select Uninstall plugin. Uninstalling can disconnect every account connected through it, and plugins your workspace installs may not offer the option.

2. **In Codex** Run /plugins in the Codex CLI, select the plugin and uninstall it, or press Space to turn it off.

## Skills

- **Mermaid Diagrams**: Author, edit, and preview Mermaid documents

## Example prompts

- "Turn this architecture into a validated multi-diagram Mermaid document with a structural preview."
- "Safely edit one marked Mermaid fence in this Markdown file without changing the surrounding bytes."
- "Create a portable Gantt, timeline, or Kanban diagram for this plan."

## Mermaid Diagrams alternatives

- [Superpowers](https://chatgptplugins.directory/plugins/superpowers.md): Plan, develop, and debug code
- [Codex Security](https://chatgptplugins.directory/plugins/codex-security.md): Security scanning for your codebase
- [Build Web Apps](https://chatgptplugins.directory/plugins/build-web-apps.md): Build frontend-focused web apps with generated assets, browser testing, payments, and...
- [GitHub](https://chatgptplugins.directory/plugins/github.md): Triage PRs, issues, CI, and publish flows
- [Figma](https://chatgptplugins.directory/plugins/figma.md): Figma design-to-code workflows
- [Shopify](https://chatgptplugins.directory/plugins/shopify.md): Build and manage your store

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Source: https://chatgptplugins.directory/plugins/mermaid-diagrams · Index: https://chatgptplugins.directory/llms.txt · Independent and community-run. Not affiliated with or endorsed by OpenAI. ChatGPT is a trademark of OpenAI.