Paste JSON to validate and pretty-print with consistent indentation.
Invalid JSON reports a syntax error instead of changing your content.
DEVELOPER TOOLS / FREE ONLINE TOOL
JSON Formatter
Pretty-print JSON with consistent indentation.
Free No signup Local processing
01Add sourceYour data stays local
02ProcessUse focused settings
03Copy outputCopy or download
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Enter your data
Ready to work.
Processed privately in your browser
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Generated result
HOW IT WORKS
About JSON Formatter
Pretty-print JSON with consistent indentation.
- Enter or paste your content.
- Choose options and run the tool.
- Copy or download the result.
How to use JSON Formatter
- Paste a valid JSON object or array.
- Click the format or beautify operation.
- Copy the indented result.
What to know before you start
JSON formatting changes spacing, not the underlying values. Invalid JSON must be corrected before formatting.