Prettify JSON Online

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JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. It is often used for transmitting data between a server and a web application as an alternative to XML. JSON is based on a subset of the JavaScript programming language and consists of key-value pairs.

What is Prettify JSON?

Prettify JSON is a term used to describe the process of formatting a JSON string in a more human-readable and well-organized way. JSON strings can sometimes be long, compact, and difficult to read, especially when they contain nested objects or arrays.

When you prettify JSON, you format the JSON string with proper indentation, line breaks, and whitespace, making it easier for humans to understand and navigate. This formatting does not affect the data itself; it only changes the presentation of the JSON string for better readability.

What is JSON pretty format?

JSON pretty format refers to the well-structured, human-readable representation of a JSON string with proper indentation, line breaks, and whitespace. When a JSON string is formatted in a pretty format, it becomes easier for humans to read and understand the data it contains, especially when dealing with complex JSON objects.

The pretty format does not alter the data itself; it only changes the presentation of the JSON string for better readability. The goal is to make the JSON string more visually appealing and organized, which can be particularly helpful when working with large or nested JSON structures.

How to prettify JSON in JavaScript?

To prettify JSON in JavaScript, you can use the built-in JSON.stringify() method with the optional space parameter. The space parameter specifies the indentation applied to the JSON string, allowing you to generate a human-readable, pretty format. Here's how you can do it:

const prettyJson = JSON.stringify(jsonData, null, 2);

How to resolve JSON parse error?

Ensure that the JSON data is in a valid format with proper syntax. JSON data should have matching opening and closing brackets/braces, and all property names and string values should be enclosed in double quotes.

Remove any trailing commas at the end of arrays or objects. Trailing commas are not allowed in JSON and can cause a parse error.

Ensure that all values in the JSON are valid. JSON supports strings, numbers, booleans, null, arrays, and objects. If there are any invalid values, such as functions or undefined, remove or convert them to valid JSON values.