Tools / JSON Formatter and Validator

JSON Formatter and Validator

Format, minify, and validate JSON online. Free JSON beautifier with syntax error messages for debugging APIs and config files.

Frequently asked questions

What does a JSON formatter do?

It parses your JSON and rewrites it with consistent indentation so you can read nested objects and arrays more easily.

Will minifying JSON break my data?

No. Minification only removes whitespace. The parsed values and structure stay the same.

Why does validation fail?

Common causes are trailing commas, single quotes instead of double quotes, or missing brackets. The error message points to the parse issue.

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