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Interactive Tree View

November 2025

Feature UI

Visualize complex JSON structures with an interactive tree view. Navigate nested objects and arrays easily with collapsible nodes and visual hierarchy.

Why Use Tree View?

When working with deeply nested JSON data or large data structures, raw text can be overwhelming. Tree view transforms your JSON into an intuitive, hierarchical visualization that makes it easy to understand and navigate complex data.

It's perfect for exploring API responses, understanding nested data structures, debugging complex JSON, reviewing configuration files, and analyzing data hierarchies. The visual representation lets you see the structure at a glance, collapse or expand sections as needed, and navigate large datasets with ease.

Interactive Features

  • Collapsible Nodes: Click to expand/collapse objects and arrays
  • Visual Hierarchy: Indentation shows nesting levels clearly
  • Type Icons: Visual indicators for objects, arrays, strings, numbers, booleans
  • Value Preview: See values inline without expanding everything
  • Count Indicators: Shows number of items in arrays and objects
  • Keyboard Navigation: Navigate with arrow keys and Enter

How to Use Tree View

  1. 1Paste or load your JSON into the editor
  2. 2Ensure your JSON is valid (use the Validate button if needed)
  3. 3Click the Tree button in the toolbar or press Ctrl+J
  4. 4Click on any node to expand/collapse it
  5. 5Use the expand/collapse all buttons to control visibility

Pro Tips

  • 💡 Large Files: Tree view is great for exploring large JSON without scrolling through hundreds of lines
  • 💡 Data Discovery: Quickly see what fields exist without reading raw JSON
  • 💡 Debugging: Spot missing fields, unexpected types, or malformed structures instantly
  • 💡 Keyboard Shortcuts: Use arrow keys to navigate and Enter to toggle nodes

Best Uses

Tree view works best with:

  • • Deeply nested objects (5+ levels)
  • • Large arrays with complex items
  • • API response exploration
  • • Configuration file review
  • • Database export analysis
  • • GraphQL response data

Visual Clarity: Color-coded data types and clear indentation make it easy to understand your JSON structure. Objects, arrays, strings, numbers, booleans, and null values each have distinct styling.

Privacy: Tree view is generated entirely in your browser. Your JSON data stays on your device and is never sent to any server for rendering.

Performance Note: For very large JSON files (1000+ nodes), tree view may take a moment to render initially. The tree is virtualized for smooth scrolling even with thousands of nodes.

All JSON formatting and validation happens locally in your browser. No data is sent to any servers.