DataFormattools
JSON · Explorer

JSON Viewer & Tree Visualizer

Explore and navigate nested JSON documents with an interactive tree visualizer. Expand, collapse, search, and inspect complex JSON objects online.

Interactive JSON Tree Explorer
JSON Source0 lines
Tree Structure

Enter JSON to render tree explorer.

100% In-Browser Privacy: All conversions, formatting, and validations run purely on your machine using client-side JavaScript. Your data, code snippets, and environment variables are never transmitted to any server or recorded in logs.
Specifications

How JSON Viewer Works

  • Constructs an interactive DOM tree representation of complex nested JSON structures.
  • Provides real-time search filtering to instantly locate keys and values across deep hierarchies.
  • Displays color-coded badges for strings, numbers, booleans, arrays, and objects.
Demonstration

Example Input & Output

Visualizes nested JSON objects as an interactive, expandable tree node hierarchy with data type labels and fast search filtering.

JSON Input Document
{
  "company": "TechCorp",
  "departments": [
    {
      "name": "Engineering",
      "lead": "Sandeep",
      "headcount": 24,
      "active": true
    },
    {
      "name": "Product",
      "lead": "Alex",
      "headcount": 8,
      "active": true
    }
  ],
  "settings": {
    "region": "US-East",
    "tier": "Enterprise"
  }
}
Expected Output
▼ {company: "TechCorp", departments: [...], settings: {...}}
  company: "TechCorp"
  ▼ departments: [2 items]
    ▶ 0: {name: "Engineering", lead: "Sandeep", headcount: 24, active: true}
    ▶ 1: {name: "Product", lead: "Alex", headcount: 8, active: true}
  ▼ settings: {region: "US-East", tier: "Enterprise"}
Applications

Common Use Cases

Large Payload Exploration

Navigate 10,000+ line JSON files without crashing your browser or getting lost in braces.

Data Type Inspection

Verify whether numeric values are formatted as integers, floats, or strings.

Guidelines

Key Specifications & Gotchas

Circular References

Standard JSON does not support circular references between objects.

Questions

Frequently Asked Questions

How do I search inside a JSON tree?

Use the search input above the tree view; matching keys and values are highlighted immediately.

Can I expand or collapse all nodes?

Yes, click "Expand All" or "Collapse All" to toggle the entire tree depth at once.

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