JSON Formatter & Validator
Paste your JSON below to format, validate, or minify it. 100% free, 100% private.
Frequently Asked Questions
What does a JSON formatter do?
A JSON formatter takes raw or minified JSON data and reformats it with proper indentation and line breaks, making it easy to read and debug.
Is this JSON formatter free?
Yes, completely free. No signup, no limits. Everything runs in your browser.
Is my JSON data private?
Yes. Your data never leaves your browser. Nothing is sent to any server.
What does minify mean?
Minifying JSON removes all whitespace and line breaks, producing the smallest possible string. Useful for reducing payload size in APIs.
Can it detect JSON errors?
Yes. If your JSON is invalid, the tool shows an error message with the approximate line number where the problem is.