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JSON Formatter

Paste messy JSON and get a clean, validated, indented result.

Paste JSON below

Formatted output

{
  "name": "Ana",
  "age": 30,
  "skills": [
    "JS",
    "SQL"
  ]
}

Processing happens locally in your browser. Nothing you enter is uploaded.

How It Works

Paste your JSON into the input box. It's validated and reformatted automatically.

Example

{"name":"Ana","age":30} becomes a neatly indented, readable object.

Frequently Asked Questions

What happens if my JSON is invalid?
The tool shows an error message describing what's wrong, such as a missing comma or bracket.
Is my data sent to a server?
No, formatting happens entirely in your browser.

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