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{} JSON Formatter

Format, validate, and minify JSON with adjustable indentation and key sorting — paste messy or minified JSON and get clean, readable output instantly.


        

    


    

        
How to Use This JSON Formatter

        
Paste or type JSON into the input pane and click Format to pretty-print it with your chosen indent (2 spaces, 4 spaces, or tabs), or Minify to strip it down to a single line. Enable "Sort keys" to alphabetize object keys, which makes it easier to spot differences between two JSON payloads.

        
Invalid JSON is flagged with a clear error message and the offending line is highlighted in the gutter and scrolled into view. If the problem is a common mistake — a trailing comma, single-quoted strings, unquoted keys, JavaScript-style comments, smart/curly quotes, or Python-style True/False/None — click "Repair" to fix it automatically and see a summary of what changed.

        
Use "Copy Output" to grab the formatted result, or "Sample" to load example JSON and try the tool out.