JSON Formatter and Validator
JSON formatter and validator
Enter JSON to validate it.
About this JSON formatter
Validate JSON and convert it between readable indentation and compact form.
Common uses
Inspect API responses, configuration files, webhooks, structured data, and development payloads.
Frequently asked questions
Does the formatter validate JSON?
Yes. Invalid JSON produces a clear parsing error instead of an output.
Can JSON be minified?
Yes. Choose Format for readable indentation or Minify for compact JSON.
Is the JSON uploaded?
No. Parsing and formatting happen locally in your browser.