🔍 Visualize your n8n workflows with Mermaid.js!

# Visualize Your n8n Workflows with Mermaid.js

This n8n workflow demonstrates how to dynamically generate Mermaid.js diagrams from your n8n workflow definitions. It allows you to visualize the structure and flow of your workflows, making them easier to understand, document, and share.

## Description

This workflow takes an n8n workflow JSON definition, extracts its structure, and transforms it into a Mermaid.js flowchart syntax. This generated Mermaid.js code can then be used in various tools (like GitHub, GitLab, Notion, or dedicated Mermaid.js renderers) to create visual representations of your n8n workflows.

## What it does

1.  **Triggers Manually**: The workflow is designed to be executed manually, allowing you to process a workflow definition on demand.
2.  **Sets Workflow Data**: An "Edit Fields (Set)" node is used to define the n8n workflow JSON data that will be processed. This is where you would paste the JSON of the workflow you want to visualize.
3.  **Generates Mermaid.js Code**: A "Code" node processes the input n8n workflow JSON. It iterates through the nodes and connections, converting them into Mermaid.js `graph TD` syntax.
4.  **Aggregates Output**: An "Aggregate" node combines the generated Mermaid.js lines into a single output item.
5.  **Responds to Webhook (Optional)**: A "Respond to Webhook" node is present, suggesting that this workflow might also be designed to be triggered by an external webhook and return the Mermaid.js code as a response.
6.  **Conditional Logic (Unused)**: A "Switch" node and an "n8n" node are present but currently unconnected, indicating potential future extensions or alternative processing paths for the generated Mermaid.js code or workflow data.
7.  **Sticky Note**: A sticky note provides context or instructions within the workflow.

## Prerequisites/Requirements

*   **n8n Instance**: You need a running n8n instance to import and execute this workflow.
*   **n8n Workflow JSON**: The JSON definition of the n8n workflow you wish to visualize.

## Setup/Usage

1.  **Import the workflow**: Download the provided JSON and import it into your n8n instance.
2.  **Provide Workflow JSON**:
    *   Open the "Edit Fields (Set)" node (ID: `38`).
    *   In the "Values to Set" section, you will find a field (likely named `json` or similar, depending on configuration) where you should paste the full JSON definition of the n8n workflow you want to visualize.
3.  **Execute the Workflow**: Click "Execute Workflow" in the n8n editor.
4.  **Retrieve Mermaid.js Code**: After execution, inspect the output of the "Aggregate" node (ID: `1236`). This will contain the generated Mermaid.js flowchart code.
5.  **Visualize**: Copy the Mermaid.js code and paste it into any tool that supports Mermaid.js rendering (e.g., GitHub Markdown, GitLab, Notion, Mermaid Live Editor) to see the visual diagram of your n8n workflow.

**Example of expected output (from the "Aggregate" node):**

```mermaid
graph TD
    A[Node Name 1] --> B(Node Name 2)
    B --> C{Decision Node}
    C -- Yes --> D[Action 1]
    C -- No --> E[Action 2]