Text UtilitiesText FormattersFree Tool
JSON Formatter
Pretty-print JSON with real 2-space indentation using the browser's native JSON parser — shows the exact parse error if your JSON is invalid.
How to Use JSON Formatter
- 1Paste your JSON
- 2Click Convert
- 3Copy the formatted, indented output (or read the error if invalid)
Frequently Asked Questions
It parses your input with the browser's native JSON.parse(), then re-serializes it with 2-space indentation — genuine parsing and formatting, not a text-pattern trick.
It shows 'Invalid JSON:' followed by the exact error message and position the native parser reports, so you can find and fix the syntax issue.
No — this only checks and formats basic JSON syntax. For schema validation, use the JSON Schema Validator tool in Developer Tools.
No — formatting happens entirely in your browser.
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