JSON Formatter
Format, validate and minify JSON with clear error messages.
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JSON Formatter & Validator — Free Online
Paste any JSON to format, validate or minify it. Syntax errors are reported with the exact line and column.
How it works
01
Paste JSON
Paste your raw or minified JSON.
02
Format or Minify
Click a button to beautify or compress it.
03
Copy Result
Copy the formatted output.
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Frequently Asked Questions
The error message shows exactly where parsing failed — common causes are trailing commas, missing quotes around keys, or an extra or missing bracket.
Format adds indentation and line breaks for readability; Minify strips unnecessary whitespace for the smallest possible output.
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