What happens if my JSON is invalid?

The tool shows the specific parse error (like an unexpected token) instead of a formatted result, helping you locate the syntax problem.

Does formatting change the data?

No — formatting only changes whitespace and indentation for readability; the underlying data structure and values are unchanged.

Developer Tools

JSON Formatter & Validator

Format, validate, and beautify or minify JSON data.

Paste JSON

Indentation

Formatted JSON

{
  "name": "ToolsPunk",
  "tools": 50,
  "free": true,
  "categories": [
    "calculators",
    "developer-tools"
  ]
}

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About this tool

Paste in raw or minified JSON to instantly validate it and see it formatted with your choice of indentation — or minify it down to a single compact line.

How to use this tool

1
Paste your JSON
Type or paste raw or minified JSON data.
2
Choose indentation
Pick 2 spaces, 4 spaces, or minified output.
3
Check for errors
Invalid JSON shows a clear parse error instead of silently failing.

Frequently asked questions

What happens if my JSON is invalid?: The tool shows the specific parse error (like an unexpected token) instead of a formatted result, helping you locate the syntax problem.
Does formatting change the data?: No — formatting only changes whitespace and indentation for readability; the underlying data structure and values are unchanged.

Developer Tools