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JSON Formatter and Validator

The JSON Formatter and Validator is an essential tool for developers working with JSON data. It combines the functionality of formatting and validating JSON, ensuring your data is both well-structured and syntactically correct. Whether you are dealing with raw, minified, or complex JSON, this tool helps improve readability and guarantees compliance with the JSON standard.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data format used to exchange information between servers and web clients. Despite its origins in JavaScript, JSON is widely supported across multiple programming languages. It uses key-value pairs to structure data and supports strings, numbers, arrays, booleans, and objects, making it versatile for various applications.

Example of JSON:

{
    "name": "John Doe",
    "age": 29,
    "isStudent": false,
    "skills": ["JavaScript", "Python"],
    "address": {
        "street": "123 Elm St",
        "city": "New York"
    }
}

JSON is praised for its simplicity and readability, and it is the de facto standard for web APIs.

JSON Formatter

A JSON Formatter takes raw or compacted JSON data and transforms it into a neatly organized, human-readable structure. Proper formatting enhances readability, making it easier to understand complex JSON objects or nested arrays. Formatting is particularly useful during development, debugging, and when reviewing

Example:

{
    "id": 101,
    "name": "Jane Smith",
    "skills": ["HTML", "CSS", "JavaScript"]
}

Versus minified JSON:

{"id":101,"name":"Jane Smith","skills":["HTML","CSS","JavaScript"]}

JSON Validator

A JSON Validator checks whether JSON data is valid according to the JSON standard. This process helps ensure that your data is correctly structured and free from syntax errors that could cause issues when parsed by applications.

Common Errors Detected by a JSON Validator:

  • Missing or Extra Commas: Ensures that commas are correctly placed between key-value pairs.
  • Unmatched Braces or Brackets: Checks for properly balanced {}, [].
  • Invalid Data Types: Ensures that all values conform to valid JSON types like strings, numbers, booleans, arrays, objects, or null.
  • Incorrect Quotation Marks: Verifies that strings are enclosed in double quotes.
  • Schema Validation: Some validators allow you to validate JSON data against a predefined schema, ensuring it adheres to specific structural rules.