JSON Formatter
Format, validate, and minify JSON data instantly.
Indent:
About JSON Formatter
Paste in raw or minified JSON and instantly get it formatted with proper indentation and syntax highlighting. You can also minify formatted JSON or validate whether a string is valid JSON. Everything runs in your browser — your data stays on your machine.
FAQ
- Is my JSON data sent to a server?
- No. All formatting and validation happens locally in your browser. Nothing is uploaded or stored anywhere.
- Can this tool fix invalid JSON?
- It can't auto-fix broken JSON, but it will tell you where the error is so you can correct it yourself.
- What's the difference between beautify and minify?
- Beautify adds indentation and line breaks so JSON is easy to read. Minify strips all whitespace to make the output as compact as possible.