JSON Viewer

Input

Output

Formatted JSON will appear here

Free Online JSON Viewer & Formatter

JSON Viewer is a free tool that formats, validates, and beautifies JSON data. Paste your raw JSON to instantly see it structured with indentation and tree view.

How to use JSON Viewer?

  1. Paste your JSON string in the input area.
  2. Click Format / Beautify.
  3. View structured JSON output with highlighting.

Why use JSON Viewer?

It helps developers debug APIs, visualize nested data, and quickly identify errors in JSON syntax.

Example

Input: {"name":"John","age":30}
Output: {
  "name": "John",
  "age": 30
}

FAQs

Is JSON Viewer free?

Yes, no signup required.

Does it validate JSON?

Yes, it highlights errors in JSON structure.

Can I edit the JSON?

Yes, you can reformat and copy back the JSON.

Related Tools