JSON ↔ CSV Converter

Flip an array of records between JSON and CSV without opening a spreadsheet. Quotes, embedded commas and newlines are handled for you.

How to use

1. Choose the direction: JSON → CSV expects an array of flat objects, CSV → JSON expects a header row on the first line.
2. Paste your data.
3. Click Convert. Copy the result into a spreadsheet, a script or a database import.

Frequently asked questions

Are nested JSON objects supported?

Values that are objects or arrays are stringified back to JSON inside the CSV cell so nothing is lost, but flat data is much easier to work with downstream.

Which CSV dialect?

RFC 4180 with commas as the separator, CRLF line endings on export, and doubled double-quotes for embedded quotes.

Are files uploaded?

No — everything is processed locally.