JSON Prettifier

Format and beautify JSON data with proper indentation and line breaks. Make compressed JSON readable and easy to debug.

JSON Input(Minified or messy JSON)

Formatted JSON Output

JSON Prettifier Tool

Why Prettify JSON?

  • • Improved Readability: Easy to read and understand structure
  • • Debugging: Spot errors and issues more quickly
  • • Code Review: Better for team collaboration and reviews
  • • Documentation: Create clean examples for APIs
  • • Learning: Understand JSON structure and hierarchy
  • • Editing: Easier to modify and update values

Perfect For

  • • Developers: Debugging API responses and configurations
  • • QA Engineers: Validating test data and responses
  • • Technical Writers: Creating documentation examples
  • • Data Analysts: Examining JSON datasets
  • • Students: Learning JSON structure and syntax
  • • DevOps: Formatting configuration files

Formatting Features

Formatting Options

  • • Adjustable Indentation: 1-8 spaces per level
  • • Proper Line Breaks: Each property on new line
  • • Consistent Spacing: Clean, readable structure
  • • Syntax Validation: Ensures valid JSON format
  • • Error Detection: Highlights syntax errors

Output Features

  • • Character Count: Shows formatted file size
  • • Line Count: Number of lines in output
  • • Copy Function: One-click clipboard copy
  • • Download Option: Save as formatted .json file
  • • Real-time Updates: Instant formatting preview

Before and After Example

Minified JSON (Before)

{"users":[{"id":1,"name":"John","email":"[email protected]","active":true},{"id":2,"name":"Jane","email":"[email protected]","active":false}],"total":2,"page":1}

Prettified JSON (After)

{
  "users": [
    {
      "id": 1,
      "name": "John",
      "email": "[email protected]",
      "active": true
    },
    {
      "id": 2,
      "name": "Jane",
      "email": "[email protected]",
      "active": false
    }
  ],
  "total": 2,
  "page": 1
}

Best Practices

Indentation Guidelines

  • • 2 Spaces: Most common, compact but readable
  • • 4 Spaces: More readable, used in many style guides
  • • Consistency: Use same indentation throughout project
  • • Team Standards: Follow your team's coding standards
  • • Tool Integration: Match your IDE/editor settings

Usage Tips

  • • API Responses: Format responses for easier debugging
  • • Config Files: Make configuration files more readable
  • • Documentation: Create clean examples for docs
  • • Code Reviews: Format before sharing with team
  • • Learning: Understand nested object structures

Privacy & Security

Data Protection

  • • Client-Side Processing: All formatting happens in your browser
  • • No Server Upload: Your JSON data never leaves your device
  • • No Storage: No data is saved or logged anywhere
  • • Secure Connection: HTTPS encryption for website access
  • • Privacy First: No tracking or analytics on sensitive data

Technical Features

  • • Real-time Processing: Instant formatting without delays
  • • Error Validation: Comprehensive JSON syntax checking
  • • Customizable Output: Adjustable indentation settings
  • • File Export: Download formatted JSON files
  • • Cross-Platform: Works on all devices and browsers

Frequently Asked Questions

What does JSON prettifying do?
JSON prettifying formats compressed or minified JSON by adding proper indentation, line breaks, and spacing. This makes the JSON human-readable and easier to debug, edit, or understand without changing the actual data.
Does prettifying change my JSON data?
No, prettifying only changes the formatting and whitespace. All your data, including values, structure, and data types, remains exactly the same. The JSON will parse to identical objects in any programming language.
What indentation options are available?
You can choose between 1-8 spaces for indentation. The most common standards are 2 spaces (compact but readable) and 4 spaces (more readable). Choose based on your team's coding standards or personal preference.
Can I format large JSON files?
Yes, the prettifier handles large JSON files efficiently in your browser. There are no file size limits, and processing happens locally so your data stays private and formatting is fast.
When should I prettify vs minify JSON?
Prettify JSON during development, debugging, code reviews, and documentation for readability. Minify JSON for production, APIs, and file storage to reduce bandwidth and improve performance. Use our JSON minifier for the opposite process.
Will this work with invalid JSON?
No, the prettifier requires valid JSON syntax. If your JSON has errors, you'll see helpful error messages. Use our JSON validator first to check and fix any syntax issues before prettifying.