Tools / JSON formatter
JSON formatter & validator
Check JSON syntax, make it readable, or minify it for compact storage. Processing stays in your browser.
What it checks
- Parses JSON using the browser's built-in JSON parser and reports syntax errors.
- Format uses two-space indentation; minify removes whitespace outside strings.
- Input is processed locally and is not uploaded.
This checks JSON syntax only. It does not validate an application-specific schema.