Home / Creator tools / Developer
Free browser utilityJSON Formatter & Validator
Format, pretty-print, minify and validate JSON online without sending your data to a server.
Format and validate JSON
Paste JSON text, choose readable or compact output and validate the structure. Invalid JSON will show an error message from the browser parser.
Waiting for JSON input.
JSON formatter FAQs
What does a JSON formatter do?
A JSON formatter checks whether text is valid JSON and displays valid data with consistent indentation so it is easier to read.
Is my JSON uploaded to a server?
No. Formatting and validation run locally in your browser in this version.
Can I minify JSON?
Yes. Use the compact output option to remove unnecessary whitespace while retaining valid JSON structure.