THE JSON KIT

JSON Viewer Online

Visualize and inspect JSON data structures instantly. Use the interactive tree view to explore nested objects, search for keys, and analyze API responses.

Empty JSON

Interactive JSON Tree View

Our JSON Viewer transforms flat, hard-to-read JSON text into an interactive, collapsible tree. This hierarchical view allows you to:

  • Navigate Deep Structures: Easily expand and collapse nested objects and arrays.
  • Identify Data Types: Visual indicators show if a value is a string, number, array, or object.
  • Copy Precision: Hover over any key to copy its exact path (e.g., data.users[0].id) or its value.

Optimized for Inspection

Unlike general text editors, this tool is built specifically for data inspection.

Deep Search

Type in the search bar to instantly highlight matching keys or values anywhere in the document. Perfect for finding specific flags in massive configuration files.

Frequently Asked Questions

What is the difference between a JSON Viewer and a JSON Editor?▼
A JSON Viewer is read-only and designed for inspecting and exploring JSON data safely. A JSON Editor allows you to modify, add, or delete data. Use the Viewer for API responses and logs, and the Editor when changes are required.
Can I search within the JSON data?▼
Yes. Use the built-in search bar to find specific keys or values. All matches are highlighted instantly, even in large JSON files.
Is this JSON Viewer read-only?▼
Yes. The Viewer is strictly read-only to prevent accidental data modification, making it ideal for inspection and debugging.
Can I view large JSON files in this viewer?▼
Yes. The JSON Viewer is optimized for large files up to 100MB using virtual rendering and lazy loading.
Does the JSON Viewer support nested objects and arrays?▼
Yes. Deeply nested objects and arrays are displayed in a collapsible tree structure for easy navigation.
Is my JSON data secure when using the Viewer?▼
Yes. All JSON processing happens locally in your browser. No data is uploaded, stored, or transmitted.
Can I inspect API response JSON with this tool?▼
Yes. The JSON Viewer is ideal for inspecting API responses, helping you understand structure, keys, and nested data clearly.
Does the JSON Viewer highlight syntax or structure?▼
Yes. Keys, values, arrays, and objects are visually distinguished to improve readability and comprehension.
Can I expand or collapse all nodes at once?▼
Yes. Use the expand and collapse controls to quickly open or close all nodes in large JSON structures.
Do I need to install anything to use the JSON Viewer?▼
No installation is required. The JSON Viewer runs directly in your browser and can also be installed as a Progressive Web App for offline use.

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