JSON Formatter & Minifier

Format JSON with proper indentation for readability or minify it to reduce file size. All processing runs locally in your browser for privacy and security.

How it works

What is JSON Formatting?

JSON (JavaScript Object Notation) is a lightweight data format used for storing and exchanging data. Formatting JSON adds indentation and line breaks to make it human-readable, while minifying removes all unnecessary whitespace to reduce file size.

How to Use the JSON Formatter

Paste your JSON into the input area and click "Format" to add proper indentation and line breaks. Click "Minify" to remove all whitespace and compress the JSON. The formatted or minified result will appear in the output area, ready to copy.

Example 1: Formatting JSON

Input: {"name":"John","age":30,"city":"New York"}

Formatted output:

{\n  "name": "John",\n  "age": 30,\n  "city": "New York"\n}

Example 2: Nested Objects

Input: {"user":{"name":"Alice","preferences":{"theme":"dark","language":"en"}}}

Formatted output shows clear hierarchy with proper indentation, making it easy to read nested structures.

When to Format vs Minify

Format JSON when you need to:

  • Read and understand JSON data
  • Debug JSON structures
  • Share JSON in documentation
  • Review configuration files

Minify JSON when you need to:

  • Reduce file size for production
  • Optimize API responses
  • Save bandwidth
  • Improve load times

Privacy & Security

This tool processes all JSON data locally in your browser. No data is sent to any server, ensuring your sensitive information remains private and secure.

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