Auto-Generated n8n Workflow Docs with GPT & Docsify

Auto-generate beautiful Docsify documentation for your n8n workflows—then edit it with a live Markdown preview

This n8n workflow builds a dynamic documentation portal for any n8n instance using Docsify.js. You get an organized, searchable website where users can browse workflow overviews, filter by tags, and open auto-generated docs—complete with Mermaid.js diagrams that visualize workflow structure.

What this workflow does

• Creates a main documentation portal powered by Docsify.js, including a sidebar for navigation and workflow tags.
• Displays workflows in a tabular overview, showing workflow status, creation date, and links to documentation.
• Generates documentation per workflow using GPT, producing consistent descriptions and formatting.
• Generates Mermaid.js diagrams to visualize each workflow’s structure.
• Provides a live documentation editor with split-screen Markdown editing and a real-time preview, including live Mermaid rendering.
• Supports save/cancel actions for updating documentation content.

Use cases

• SaaS operations & onboarding: Publish clear internal docs so new team members can understand available automations quickly.
• Automation engineering: Keep workflow documentation up to date as workflows evolve, using GPT-assisted generation and easy edits.
• Tag-based governance: Filter and review workflows by tag (e.g., team, purpose, environment) when auditing automation behavior.
• Workflow transparency: Use Mermaid diagrams to communicate workflow logic visually to stakeholders.

Technical details

• Docsify.js portal with navigation sidebar and workflow pages.
• GPT-based documentation generator to auto-create workflow descriptions.
• Mermaid.js diagram generation for workflow structure visualization.
• Environment setup: requires write access to the specified project directory and uses environment variables for the n8n instance URL configuration.
• Webhooks: implements webhook endpoints for serving the documentation.
• Security consideration: the current implementation does not include authentication for editing—add authentication for production use.

Includes

Designed as an n8n automation workflow using nodes including if, set, code, html, and no op.