JSON Formatter, Minifier and Validator

Paste JSON and format it instantly; errors point to the exact line and column

How to use

Paste your JSON into the box: click Beautify to indent it, Minify to strip whitespace, or Validate to check whether it is legal JSON.

Does it handle very large JSON? Tens of MB work in the browser, but they consume memory. The error message reports exactly where parsing failed.

Privacy: every calculation runs inside your browser. Your files and text never leave your device.