JSON Formatter

Format and validate JSON text with syntax highlighting

JSON Format Example

{ "name": "John Doe", "age": 30, "city": "New York", "hobbies": [ "reading", "swimming", "coding" ], "address": { "street": "123 Main St", "zipcode": "10001" } }

This tool helps you format and validate JSON data. Simply paste your JSON into the input area and click "Format JSON" to make it readable, or "Minify JSON" to compress it.

About JSON

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.

  • JSON is built on two structures: a collection of name/value pairs and an ordered list of values.
  • JSON is language-independent but uses conventions familiar to programmers of the C-family of languages.
  • Common uses include web APIs, configuration files, and data storage.
  • Valid JSON requires proper syntax including correct use of quotes, commas, and brackets.

For more information, visit json.org.

Complete JSON Processing Guide

How to Use JSON Formatter

  1. Paste or type your JSON data in the input field
  2. Click "Format JSON" to beautify and validate
  3. Use "Minify JSON" to compress for production
  4. Review validation errors if any
  5. Copy or download the processed JSON

JSON Best Practices

  • Use double quotes for all string values
  • Validate syntax before deployment
  • Minify for production environments
  • Format for development and debugging
  • Check for trailing commas

Common Use Cases

  • API response formatting
  • Configuration file validation
  • Data exchange format cleanup
  • Development debugging
  • Production optimization

Understanding JSON Format

JavaScript Object Notation (JSON) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's widely used in web applications for data exchange between servers and clients.

JSON Structure Elements:

Objects

Unordered collections of key-value pairs enclosed in curly braces {}. Keys must be strings, values can be any valid JSON type.

Arrays

Ordered lists of values enclosed in square brackets []. Elements can be any JSON type including objects and nested arrays.

Primitive Types

String, number, boolean, and null values. Strings must use double quotes, numbers can be integers or floats, booleans are true/false.

Nested Structures

JSON supports complex nested structures combining objects, arrays, and primitive types for representing hierarchical data.

Privacy & Security Guarantee

Your JSON data is processed entirely in your browser - no data is transmitted to our servers. This ensures complete privacy and security for sensitive configuration data, API responses, or proprietary information.

  • ✅ No data transmitted to external servers
  • ✅ Client-side processing only
  • ✅ No data storage or logging
  • ✅ Immediate results without network delays
  • ✅ Safe for sensitive configuration data