JSON Formatter & Validator
Format, validate, and minify JSON with clear error messages. Processing happens in your browser.
Ready. Enter or paste JSON to get started.
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Privacy: your JSON is not sent to a server or stored by this tool.
How to use the JSON formatter
Paste JSON into the editor, choose an indentation style, and select Format JSON to validate and make the structure easier to read. Minify removes extra whitespace while preserving the data. Validation reports syntax errors without changing your input.