JSON Formatter and Validator

JSON (JavaScript Object Notation) is a lightweight data-interchange format, easy to read and write for humans and simple to parse and generate for machines. It's widely used in web APIs, configuration files and data storage.

JSON Syntax

{
  "string": "texto",
  "number": 42,
  "boolean": true,
  "null": null,
  "array": [1, 2, 3],
  "object": { "key": "value" }
}

Common Errors

• Missing or extra comma between elements
• Single quotes instead of double quotes
• Unclosed braces or brackets
• Comma after the last element (trailing comma)

Usage Tips

Use formatting to make JSON readable during development. Minify for production to reduce file size. Sorting keys alphabetically makes it easier to compare different versions of the same JSON.