What does this JSON formatter do?
This tool parses JSON in your browser, checks whether it is valid, and lets you output a prettified, minified, or key-sorted version. It is useful when you are reviewing API payloads, configuration files, or exported data.
How to use the JSON formatter
- Paste a JSON object or array into the input field.
- Check the validation message to confirm the JSON is valid.
- Choose Format JSON, Minify JSON, or Sort keys, then copy the result.
Common use cases
- Clean up API responses before code review.
- Minify JSON payloads for compact storage or testing.
- Sort object keys to make configuration diffs easier to read.