Format, validate, and beautify JSON data. Perfect for developers working with APIs and JSON files.
Format parses your JSON and re-prints it with two-space indentation and line breaks per nesting level, which is what you want while reading or debugging. Minify parses the same input and re-prints it with no whitespace at all, producing the smallest valid string for production payloads. Both validate first and refuse to touch invalid input.
When parsing fails, the status panel shows the browser parser's exact message, which typically names the unexpected token and its position in the document, such as a trailing comma or an unquoted key. The output pane is cleared so a stale result can never be mistaken for the current input.
No. The tool formats, validates, and minifies whole documents; it has no query or filtering language. If you need to transform or reshape the data, converting it with the JSON to CSV tool or processing it in your own script is the better fit.
Only presentation. The document is parsed and re-serialized, which normalizes whitespace and quoting style while preserving values, nesting, and key order. The character and line counters under each pane let you confirm the before-and-after size at a glance.
No. Parsing uses the JSON engine built into your browser, and formatting, minifying, and copying all happen on this page. API responses or config files you paste never leave your machine.