Convert JSON to Mermaid ER Diagrams and Mind Maps instantly.
Users
33
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#126K
#105K among extensions
Version
1.0
updated 19 Dec 2025
Users
monthly, 10 months
Latest, 16 Oct 2026:33 usersMove the mouse over the chart for any month
Ratings count
monthly, 10 months
Latest, 16 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About JSON to Mermaid Diagram Generator (ToolsHref)
Visualize your data structures instantly.
This extension converts raw JSON into clean Mermaid.js syntax for Entity Relationship (ER) Diagrams and Mind Maps. It is designed for developers, architects, and data analysts who need to document APIs or data structures quickly.
🚀 KEY FEATURES:
• JSON to ER Diagram: Automatically detects objects, arrays, and relationships.
• JSON to Mind Map: Visualizes your JSON hierarchy as a tree.
• One-Click Copy: Generates valid Mermaid code ready to paste into GitHub, Notion, or ToolsHref.
• Zero-Crash Engine: Uses a robust text generator that handles large, complex JSON without freezing.
🔒 PRIVACY FIRST:
• Zero Permissions Required: We do not access your tabs, history, or personal data.
• Offline Processing: All conversion happens locally in your browser. No data is sent to the cloud.
🛠 NEED VISUALIZATION?
This tool generates the code. To view, edit, and export these diagrams visually, use our advanced suite at: https://toolshref.com/json-to-mermaid-generator/
Updates:
v1.0 - Initial Release with safe-mode generation.