CSV to JSON Converter

Convert comma-separated CSV to a JSON array of objects using the first row as column names. Values stay strings, so entries like 001 are preserved.

JSON → CSV CSV → JSON

The first CSV row contains headers. By default, nested values become JSON strings. CSV values are read as strings. Missing keys become empty cells; null becomes null.

CSV input

Conversion result

All processing happens in your browser. Nothing is sent to or stored on a server.