JSON Tree View Online

About This Tool

Explore any JSON document as an interactive collapsible tree. This tool runs entirely in your browser — no data is ever sent to a server. Free to use, no account required.

How the JSON Tree View Works

The tree view renders JSON data as an interactive hierarchy where every object and array is a collapsible node, making it easy to navigate complex structures.

Expanding and Collapsing Nodes

Click any object or array node to expand it and reveal its children, or collapse it to hide them. Expand all and collapse all buttons control the entire tree at once.

Type Indicators

Each value is labeled with its JSON type and color-coded. Strings appear with quotes, numbers without, booleans as true/false, arrays with element count, and objects with key count.

Benefits of a Tree View for JSON

The tree view is particularly valuable for understanding unfamiliar JSON structures and navigating large API responses.

Navigating Deeply Nested Data

When JSON has many levels of nesting, a flat text view requires careful reading to understand the hierarchy. The tree view shows parent-child relationships visually, letting you expand just the path you need.

Identifying Structure Quickly

See the overall shape of a JSON document at a glance — how many top-level keys, which contain arrays versus objects, and the approximate depth of nesting — without reading every value.

JSON Tree View: Structure Visualization

A JSON tree view renders nested JSON as an expandable node tree — like a file browser. This is the most intuitive way to navigate complex API responses and configuration files with deep nesting.

What a JSON Tree Shows

// JSON Input
{
  "company": "Acme Corp",
  "employees": [
    {"name": "Alice", "dept": "Engineering"},
    {"name": "Bob",   "dept": "Marketing"}
  ],
  "address": {"city": "NY", "zip": "10001"}
}

// Tree View (text representation)
▼ {}
  company: "Acme Corp"
  ▼ employees [2]
    ▼ [0] {}
      name: "Alice"
      dept: "Engineering"
    ▼ [1] {}
      name: "Bob"
      dept: "Marketing"
  ▼ address {}
    city: "NY"
    zip: "10001"

Tree Node Types

JSON Tree in JavaScript

// Render a simple text tree
function renderTree(obj, indent = 0) {
  const pad = "  ".repeat(indent);
  if (Array.isArray(obj)) {
    obj.forEach((v, i) => {
      console.log(`${pad}[${i}]:`);
      renderTree(v, indent + 1);
    });
  } else if (typeof obj === "object" && obj !== null) {
    Object.entries(obj).forEach(([k, v]) => {
      if (typeof v === "object") {
        console.log(`${pad}${k}:`);
        renderTree(v, indent + 1);
      } else {
        console.log(`${pad}${k}: ${JSON.stringify(v)}`);
      }
    });
  }
}

Navigating JSON with Tree View

The tree view gives you three primary ways to explore any JSON document:

1. Expand/Collapse nodes — click any object or array node to show/hide its children
2. Search — highlight all nodes matching a key or value string
3. Copy path — right-click any node to copy its JSONPath expression

▾ {4 keys}
  ► name: "Alice"
  ► age: 30
  ▾ address {2 keys}
    ► city: "London"
    ► country: "UK"
  ▾ tags [2 items]
    ► 0: "admin"
    ► 1: "user"

JSON Tree View vs Raw JSON