Privacy Secured: This utility runs 100% inside your browser. No files, logs, or values are uploaded to any server. Your information stays safe on your device.
About JSON Viewer
The JSON Viewer is a clean developer utility designed to inspect nested JSON structures. Reading large, nested JSON files as text can be difficult. Our tree viewer parses JSON data into an interactive, expandable tree structure, letting you collapse objects, inspect arrays, and explore complex data hierarchies easily.
How it Works
Paste your JSON into the text field and click "Inspect JSON Tree". The tool parses the JSON and renders it as an interactive tree structure. You can click on the arrows next to objects and arrays to expand or collapse them, and hover over keys to inspect their values and data types.
Key Features
- Collapsible Tree View: Click keys to expand or collapse nodes.
- Data Type Indicators: Identifies strings, numbers, arrays, and objects.
- Clear Structure: Highlights syntax and formats keys cleanly.
- 100% Client-Side: Processes code locally without server uploads.
Technical Details
The viewer recursively parses the JSON object. It maps each key-value pair to a React component node. If the value is an array or object, it renders a collapsible container with toggle state controls (collapsed/expanded) and recursively renders child nodes, applying specific colors based on JavaScript data types.