JSON Formatter
Pretty-print or minify JSON and get a clear error message if it's invalid.
By The Paper Room Editorial Team — Developer Tools
Frequently asked questions
What does the JSON formatter do?▼
It takes raw or minified JSON and formats it with consistent indentation, making the structure easy to read. It also validates the JSON and reports syntax errors with their location.
Can it minify JSON as well as prettify it?▼
Yes. You can switch between prettified (indented) and minified (compact, no whitespace) output. Minified JSON is useful for reducing payload sizes in APIs and configuration files.
Is my data sent to a server?▼
No. All formatting and validation happens in your browser using JavaScript's built-in JSON parser. Your data never leaves your device.