JSON Formatter
Format, validate, and minify JSON data with customizable indentation
Input JSON
About JSON
Overview: JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format. Despite its name, JSON is language-independent and widely used for data exchange between servers and web applications.
JSON is human-readable and easy to parse, making it the preferred choice for APIs, configuration files, and data storage across modern web development.
Common Use Cases:
• REST API data exchange and responses
• Configuration files for applications and tools
• Database document storage (MongoDB, CouchDB)
• AJAX web application data transmission
• Data serialization and logging systems
JSON Formatting Benefits
Why Format JSON:
Raw JSON is often compressed into a single line for transmission efficiency, but this makes it difficult for humans to read and debug. Our formatter adds proper indentation and line breaks to improve readability.
Example Transformation:
Before (minified):
{"users":[{"id":1,"name":"John","active":true},{"id":2,"name":"Jane","active":false}],"total":2}
After (formatted):
{ "users": [ { "id": 1, "name": "John", "active": true }, { "id": 2, "name": "Jane", "active": false } ], "total": 2 }
Tool Features:
• Real-time JSON validation with error detection
• Customizable indentation (2 spaces, 4 spaces, or tabs)
• Both formatting and minification capabilities
• Syntax highlighting for better readability
• One-click copy to clipboard functionality
JSON Syntax Rules:
• Strings must be enclosed in double quotes (not single quotes)
• Object keys must always be strings in quotes
• No trailing commas allowed after the last element
• No comments allowed in pure JSON format
• Values can be: strings, numbers, booleans, null, objects, or arrays
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