JSON Formatter — Free Online, No Upload Needed
Validate, format, minify and inspect JSON with error messages and key stats.
Data & DevFreeNo upload
Open the interactive json formatter tool — free, runs in your browser.
About this json formatter
Debug API responses and config files: paste minified or broken JSON to validate it, pretty-print it with indentation, minify it for production, or sort keys for stable diffs — with clear error messages pointing at the problem.
How to use
- Paste JSON.
- Click Format, Minify or Sort keys.
- Download the cleaned .json file if needed.
JSON Formatter FAQ
Is my JSON uploaded?
No. Parsing runs locally with JSON.parse.
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