Precise validation
Syntax errors include a line and column whenever the browser provides a character position.
JSON Formatter.
Format, minify, validate, and sort JSON without sending data to a server.
Your formatted JSON tree appears here
Objects and arrays can be expanded one level at a time.
Readable structured data
Catch invalid JSON
before your app does.
Stable key sorting
Sort nested object keys while leaving array order unchanged.
Private by design
Even sensitive configuration data stays inside your browser.