Developer Tools

JSON to CSV Converter

Convert a JSON array of objects into CSV — union of all keys becomes the header row.

About the JSON to CSV Converter

JSON to CSV flattens an array of objects into spreadsheet-ready CSV. The header row is the union of all keys; values containing commas, quotes or line breaks are quoted correctly.

Nested objects and arrays are serialized as JSON strings inside their cell — flatten your data first if you need individual columns.