JSON Graph Visualization - Interactive Node Diagrams

Why Visualize JSON as a Graph?

Large JSON documents can be hundreds or thousands of lines. A graph visualization shows the structure at a glance — how objects nest, where arrays branch, and how deep the hierarchy goes. It turns abstract data into a visual map you can explore interactively.

Node Types

JSON values are represented as three types of nodes:

Object nodes	Show key-value pairs as rows. Keys link to child nodes for nested values.
Array nodes	Show indexed elements. Each element links to its child node.
Primitive nodes	Show leaf values (strings, numbers, booleans, null) with color-coded types.

Layout Options

Choose the layout that best fits your data:

Left to Right	Classic tree layout. Best for most JSON data. Reads naturally like code.
Top to Bottom	Org-chart style. Good for deep hierarchies with few branches.
Radial	Root in the center, children fan outward. Good for wide, shallow structures.

Edge Labels

Edges between nodes are labeled with the property key or array index that connects them — for example, name, config, or [0]. This makes it easy to trace the path from parent to child without clicking individual nodes.

Edge labels can be toggled on or off using the Labels button in the toolbar. When exporting as PNG, edge labels are included in the image.

Collapsible Nodes

Object and array nodes at depth 2 or deeper are collapsed by default to keep the initial view manageable. Click the expand/collapse button on any node to toggle its children. When you collapse a node, all its descendants are hidden and the graph re-layouts automatically.

This is especially useful for large JSON structures where you want to focus on a specific branch without visual clutter from other parts of the tree.

Interactive Features

Zoom & pan — Scroll to zoom, drag to pan. Navigate large graphs easily.
Minimap — Overview of the entire graph with your current viewport highlighted.
Click to select — Click any node row to select its JSONPath. Navigate between matches with arrow keys.
Inline editing — Hover over a value and click the pencil icon to edit it directly in the graph.
JSONPath search — Use JSONPath queries to highlight matching nodes and rows across the graph.
PNG export — Export the graph as a high-resolution PNG image with configurable background (white or transparent) and scale (2x, 3x, 4x).

Performance

The graph defaults to 500 nodes but can be increased to 1,000, 2,000, or 5,000 via the node limit selector in the toolbar. Large JSON documents are automatically truncated with a warning banner. For very large files, use the tree viewer instead — it lazily renders only expanded nodes.

Visualize JSON now