JSON validator & beautifier

Use JSON validator & beautifier tool to validate JSON content and make it looks good.

What is JSON validator?

A JSON validator is a tool that checks the syntax and structure of a JSON (JavaScript Object Notation) file or string to ensure it complies with the JSON standard. The validator can detect errors and formatting issues in JSON data and provide feedback to help users fix those issues.

JSON is a lightweight data interchange format used to transmit data between a server and a client. The syntax of JSON is based on the JavaScript programming language, and it consists of key-value pairs and arrays. JSON is easy to read and write, making it a popular choice for web APIs and data exchange.

A JSON validator typically uses a parser to analyze the JSON file and compare it against the JSON specification. If the validator finds any errors or formatting issues, it will report them to the user. Some JSON validators may also offer suggestions for fixing the errors or provide formatting options to help users make their JSON data more readable and organized.

What is JSON validator tool do?

A JSON validator tool checks the syntax and structure of a JSON file or string to ensure that it complies with the JSON standard. The tool can help you detect errors, formatting issues, and other potential problems in your JSON data.

Here are some common tasks that a JSON validator tool can perform:

  1. Syntax checking: The tool checks the JSON syntax to ensure that it follows the standard format. If there are any syntax errors, the tool will report them to you.
  2. Data validation: The tool can also validate the data in the JSON file to ensure that it conforms to the specified schema or structure.
  3. Error reporting: If there are any errors in your JSON data, the tool will report them to you along with suggestions for fixing them.
  4. Formatting options: The tool may also provide formatting options to help you organize and structure your JSON data for better readability.
  5. Integration with development tools: Some JSON validator tools can integrate with development tools such as IDEs (Integrated Development Environments) and text editors to provide real-time feedback on your JSON data as you edit it.

JSON example

Here is an example of a simple JSON object:


  "name": "John Smith",

  "age": 35,

  "email": "[email protected]",

  "address": {

    "street": "123 Main St",

    "city": "Anytown",

    "state": "CA",

    "zip": "12345"


  "phone_numbers": [


      "type": "home",

      "number": "555-1234"



      "type": "work",

      "number": "555-5678"




Copy the previous JSON example and put it in the tool for validating, make changes to the code, and check it again to check that the code is correct.

Overall, a JSON validator tool can help you ensure that your JSON data is correct, well-structured, and free of errors, which can save you time and prevent issues down the line.


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