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JSON Formatter

Format, minify, and validate JSON instantly — with clear error messages if something's wrong.


    

    

      
      
      
    

  






  
How to Use JSON Formatter

  
    
      
  1. Paste your raw JSON into the input box.
    2. 
      
  2. Click Format / Beautify for readable indented JSON, or Minify to compress it.
    3. 
      
  3. If your JSON is invalid, a clear error message will show exactly what's wrong.
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Features

  

      
🎯
Clear error messages

      
⚡
Instant formatting

      
🔒
Nothing uploaded

      
📱
Mobile friendly

  






  
Frequently Asked Questions

      

        
Is it free?

        
Yes.

      

      

        
Is my JSON data uploaded anywhere?

        
No, parsing and formatting happen entirely in your browser.

      

      

        
What happens if my JSON is invalid?

        
You'll see a clear error message describing the issue so you can fix it quickly.

      






  

    
🤖 Ask AI about this tool

    
Tap a question for an instant answer. Full conversational AI is coming soon.

    
Why is my JSON invalid?
Common issues include trailing commas, unquoted keys, or mismatched brackets — check the error message for the exact location.

    
What's the difference between formatting and minifying?
Formatting adds indentation for readability; minifying removes all unnecessary whitespace to reduce file size.

    
Can I format very large JSON files?
Yes, though extremely large files may be slower depending on your device's performance.

    

      
      
    

  






  
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