Markdown to Mermaid Converter
Convert Markdown headings and lists into Mermaid flowchart diagrams. Transform document structure into visual diagrams for presentations and documentation.
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Complete Guide: Markdown to Mermaid Converter
Everything you need to know about using this tool effectively
The Markdown to Mermaid Converter transforms Markdown headings and nested lists into Mermaid flowchart diagram syntax. It creates nodes for each heading and list item, connects them with edges to show hierarchy, and outputs valid Mermaid code that renders in GitHub, GitLab, and documentation tools. All processing happens in the browser.
This tool parses the Markdown heading hierarchy and list structure, maps each element to a Mermaid flowchart node, and generates directional edges to represent parent-child relationships. The output is a complete Mermaid flowchart graph definition.
Visualizing document structure
Turn a Markdown outline into a flowchart showing section relationships.
Creating project roadmaps
Convert Markdown milestone lists into visual Mermaid diagrams for presentations.
Generating architecture diagrams
Transform Markdown component lists into system architecture flowcharts.
Building sitemap diagrams
Convert a Markdown site structure into a navigable Mermaid diagram.
Paste Markdown
Enter Markdown with headings and lists in the input area.
Convert
Click Convert. The tool generates Mermaid flowchart syntax.
Copy the diagram code
Copy the Mermaid code for use in documentation or rendering tools.
Use consistent heading levels for a clean hierarchy.
Nested lists create subgraphs in the Mermaid output.
Paste the output into a Mermaid live editor to preview the diagram.
Keep headings short for readable node labels.
What Mermaid diagram type is generated?
The tool generates a flowchart (graph TD) with nodes and edges representing the document hierarchy.
Is my content sent to a server?
No. All conversion happens in your browser. Nothing is transmitted.
Can I change the layout direction?
Yes. You can select top-down (TD) or left-right (LR) layout before converting.
Does it support nested lists?
Yes. Nested list items become child nodes connected to their parent with edges.
Where can I render the output?
The Mermaid code works in GitHub READMEs, GitLab wikis, Notion, and any Mermaid-compatible renderer.