JSON Formatter

JSON Formatter

Format and beautify JSON into a clean, readable structure.

Paste your JSON into the formatter to quickly turn minified or difficult-to-read data into properly indented JSON that’s easier to inspect, debug and work with.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data format commonly used to exchange information between applications and services.

A simple JSON object might look like this:

{"name":"John","active":true,"roles":["admin","user"]}

Although valid, compact JSON can become difficult to read when working with larger objects.

Formatting it produces a much clearer structure:

{
  "name": "John",
  "active": true,
  "roles": [
    "admin",
    "user"
  ]
}

Why format JSON?

Formatting JSON makes complex data structures easier to understand and navigate.

It’s particularly useful when working with:

• REST APIs
• API responses
• Configuration files
• Application settings
• Webhooks
• Log data
• Database exports
• Development and debugging

Format and beautify JSON

The JSON Formatter adds indentation and line breaks while preserving the original structure and values of your JSON.

This makes nested objects and arrays significantly easier to follow without manually editing the data.

Validate JSON

JSON follows a strict syntax. Missing commas, incorrect quotation marks or unmatched brackets can cause applications and APIs to reject the data.

Formatting JSON can help identify structural and syntax problems so they can be corrected more easily.

Common JSON errors

Some of the most common JSON problems include:

• Missing commas between properties
• Trailing commas
• Missing quotation marks around property names
• Mismatched braces or brackets
• Invalid escape characters
• Using single quotes instead of double quotes
• Unexpected characters within the document

JSON formatting for developers

JSON is used extensively across modern software development, from frontend applications and APIs to cloud services and configuration files.

A formatter provides a quick way to inspect JSON without needing to open an IDE, write a script or manually reformat the document.