Format and Validate JSON
Format, pretty-print, and validate JSON data. Transform minified JSON into readable, indented output. Free online JSON formatter and validator.
常见问题
What is the difference between formatting and validating JSON?
Formatting (pretty-printing) adds indentation and line breaks to make JSON readable without changing the data. Validation checks whether the JSON structure is syntactically correct according to the JSON specification. Our tool does both simultaneously — if the JSON is valid, it formats it; if invalid, it shows the exact error location.