JSON to Mermaid Online - Free Tool

Generate Mermaid diagram from JSON structure. 100% browser-based, no registration required.

Step 1: Paste your JSON

Paste or type your JSON data into the input area above.

What is JSON to Mermaid?

Generate Mermaid diagram from JSON structure. Works entirely in your browser.

Is JSON to Mermaid free?

Yes, completely free. No registration, no limits, no hidden fees.

Can I process large JSON files?

Yes, the tool runs client-side. Large files may take longer.

Is my JSON data secure?

Yes, all processing is done locally in your browser.