JSON Formatter

Pretty-print JSON with syntax highlighting, recursive key sorting and document statistics.

Paste JSON below, then format it.
JSON input
Output

One connected JSON and data toolkit

PlanetJSON groups related jobs into one focused workspace. Format an API response, validate it, compare versions, generate application models or move it into CSV without copying sensitive data between unrelated websites.

Nested data support

The code generator discovers nested objects and arrays, merges object shapes found across array items, and creates named models recursively. CSV conversion uses dotted paths such as customer.address.city to preserve nested objects, while arrays and complex values remain valid JSON inside their cells.

Private by design

Every parser, converter and generator runs locally in your browser. Files and pasted data are never uploaded.