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JSON Formatter & Validator

Prettify, minify, and validate JSON instantly. Errors are highlighted with clear messages.

✓ FreeNo loginInstant results

How it works

JSON (JavaScript Object Notation) is a lightweight data-interchange format. This tool parses your raw JSON using JavaScript's built-in JSON.parse() and JSON.stringify() functions — all locally in your browser. No data is sent to any server.

01
Paste your raw JSON
02
Choose Format or Minify
03
Copy the result or fix errors
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