Data
JSON Formatter & Validator
Validate JSON, pretty print it, or minify it for compact storage.
Privacy-firstNo trackingRuns locally
How it works
- Paste JSON into the editor.
- Choose pretty print or minify.
- Errors are shown with clear messages so you can fix invalid JSON.
FAQ
Does it support large JSON?
It runs locally in your browser and handles most typical payloads quickly.
Will it change my data?
Formatting does not alter values, only whitespace and ordering as preserved by JSON.
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