JSON to CSV

Convert a JSON array into a CSV file, right in your browser. Free, private, nothing uploaded.

Drop files here or click to browse

Converted on your device. Nothing is uploaded — no size limit.

Frequently asked questions

Are my files uploaded to a server?

No. Everything is processed entirely inside your browser. Your files never leave your device or get sent anywhere.

What JSON format does it expect?

An array of objects (e.g. [{"name":"A","age":1}, …]). The object keys become the CSV header row.

What if objects have different keys?

All keys found across the objects are collected into columns, and missing values are left blank.