JSON Formatter & Validator

Pretty-print, minify, and validate JSON data. Runs entirely in your browser — your data never leaves your device.

Frequently Asked Questions

What is a JSON Formatter?

A JSON Formatter is a tool that takes raw or minified JSON data and formats it with proper indentation and line breaks, making it easy to read and debug. It can also validate the JSON syntax and report errors.

Is my data safe when using this tool?

Yes. This JSON formatter runs entirely in your browser using JavaScript. Your data never leaves your device — nothing is sent to any server.

What is the difference between formatting and validating JSON?

Formatting (pretty-printing) restructures valid JSON with indentation for readability. Validating checks whether the input is syntactically correct JSON and reports errors like missing commas, unquoted keys, or mismatched brackets.

Can I minify JSON with this tool?

Yes. Click the Minify button to remove all whitespace from your JSON, producing the most compact representation. This is useful for reducing payload size in API requests and webhook bodies.

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