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JSON Formatter & Validator

Format, validate, minify, and beautify JSON data instantly

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What Is the JSON Formatter?

          
Our JSON Formatter instantly beautifies raw JSON data by adding proper indentation, line breaks, and syntax highlighting. It also validates your JSON and shows detailed error messages when the syntax is invalid.

          
          
JSON Formatting Features

          
    
            
  • Format/Beautify: Converts minified JSON into readable, indented format
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  • Minify: Removes whitespace for compact production use
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  • Validate: Checks JSON syntax and reports exact error location
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  • Indent Options: Choose 2 spaces, 4 spaces, or tabs
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JSON Syntax Rules

          
    
            
  • Keys must be strings in double quotes
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  • Values can be string, number, object, array, boolean, or null
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  • No trailing commas allowed
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  • No comments supported (use JSONC for that)
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Common JSON Errors

          
The most common JSON syntax errors include: missing closing brackets, trailing commas, single-quoted strings instead of double quotes, and unescaped special characters in strings.