What Is JSON to Mermaid Diagram Generation?
Mermaid.js is a popular diagramming tool that renders flowcharts from text definitions. This tool converts your JSON data into a Mermaid flowchart, where each JSON key becomes a node and nested objects create hierarchical branches. It is perfect for visualizing API response structures, configuration hierarchies, and complex data models.
How to Generate a Mermaid Diagram from JSON
- Paste your JSON data containing the object hierarchy you want to visualize.
- Click Generate Diagram to create a Mermaid flowchart definition. Nested objects become child nodes connected by arrows.
- Copy the Mermaid code and paste it into any Mermaid-compatible renderer (GitHub Markdown, Notion, or mermaid.live).
Frequently Asked Questions
How are arrays handled in the diagram?
Arrays are shown as parent nodes with up to 10 child elements displayed. If an array contains objects, each object is shown with its key-value pairs.
Is there a limit to the depth or size?
The tool limits display to 15 keys per object and 10 items per array to keep diagrams readable. For very large JSON files, consider trimming the input first.
Can I convert a Mermaid diagram back to JSON?
Yes, use the Swap button to parse Mermaid flowchart definitions back into structured JSON.