Developer Tools
JSON Formatter & Validator
Format, validate, minify, and sort JSON data without sending it to a server.
Formatted JSON
How to use
Paste JSON to check its syntax, add readable indentation, create a compact version, or recursively sort object keys for easier comparison.
- Paste an API response, configuration object, or JSON document.
- Choose formatting, minification, or recursive key sorting.
- Review validation errors or copy the processed JSON result.
Best for
- API response debugging
- Configuration cleanup
- JSON syntax validation
Why the result matters
- Readable indentation makes nested objects and arrays easier to inspect during debugging.
- Sorted keys create stable output that is easier to compare across versions.
Example inputs
- Format a compact API response
- Validate a package configuration snippet
- Sort nested keys before comparing two payloads
FAQ
Does the JSON formatter upload my data?
No. Parsing and formatting run locally in your browser.
Can this tool find invalid JSON?
Yes. It displays the parsing error when the input contains invalid JSON syntax.
What does minify do?
Minification removes unnecessary spaces and line breaks while preserving the JSON data.
Does sorting change array order?
No. Object keys are sorted recursively, but array item order stays unchanged.