Syntax Highlighting · Format & Minify · 100% Free

JSON Formatter & Beautifier

Instantly format, beautify or minify JSON with syntax highlighting and error detection — right in your browser.

Input JSON
Formatted Output

      

    

    

      Keys: –
      Size: –
      Depth: –
      

      
    

  






  
The JSON tool developers love

  
Format, minify, sort and analyze JSON in seconds — no extensions, no login.

  

    
🎨
Syntax Highlighting
Keys, strings, numbers, booleans and nulls are color-coded for easy reading.

    
🗜
Format & Minify
Beautify compressed JSON or minify formatted JSON for production use.

    
🔤
Sort Keys
Alphabetically sort all JSON keys recursively for consistent formatting.

    
🛡
Instant Validation
Errors are detected immediately with a clear message — fix them fast.

  










  
How It Works

  
Three Simple Steps

  

    
1
Paste your JSON
Paste your minified or unformatted JSON text into the input area.

    
2
Choose indent size
Select 2 or 4 spaces, or tab indentation, then click Format.

    
3
Copy the result
Copy the beautifully formatted, human-readable JSON to use in your project.

  





  

    
Frequently Asked Questions

    
Is this JSON formatter free?
Yes, 100% free. No signup, no limits, no watermarks.

    
Does my JSON get sent to a server?
No. Formatting is done entirely in your browser using JavaScript's JSON.parse and JSON.stringify.

    
What is the difference between format and validate?
Formatting makes JSON readable; validation checks that the syntax is correct.

    
Can I minify JSON too?
Yes. Many JSON formatters also offer minification (compact output).

    
What causes JSON formatting errors?
Trailing commas, unquoted keys, single quotes instead of double quotes, and missing brackets.

  





  
Json Formatter — Complete Guide

  
This free online json formatter tool is designed to work entirely in your browser — no uploads, no waiting, no software installation needed. It's fast, private, and completely free to use without any account or subscription.

  

    
💡 Indent 2 vs 4 spaces
2-space indentation is standard in most JavaScript projects; 4 spaces are common in Python.

    
💡 Validate first
Before formatting, validate your JSON to catch syntax errors.

    
💡 API response debugging
Paste raw API responses to quickly understand the data structure.

    
💡 Sort keys
Sort JSON keys alphabetically to make comparison of two JSON responses easier.

  

  
JSON formatting is a daily task for developers working with REST APIs, configuration files, database outputs, and structured data exchange.



  
  

    

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