JSON to CSV converter

See examples

API export

Convert a JSON response into CSV so it can be opened in a spreadsheet.

Nested fields

Flatten simple nested object fields into dotted CSV columns.

Quick data handoff

Copy or download CSV without sending private JSON to a server.

About this helper

This converter parses JSON in your browser and turns arrays or objects into CSV rows. Object fields become columns, nested object fields use dotted names, and arrays inside fields are kept as JSON text inside the CSV cell.

Is my JSON uploaded?

No. The conversion runs in your browser and the site does not receive the JSON you paste.

What JSON shape works best?

An array of objects works best because each object becomes a CSV row.

How are nested objects handled?

Nested object fields are flattened with dotted column names, such as address.city.