JSON to CSV Converter

Paste a JSON array of objects below and get back a clean CSV file, ready to open in Excel, Google Sheets, or Numbers.

Nested objects and arrays are automatically flattened into dotted column names (e.g. address.city), so you don’t lose any data on the way to a spreadsheet.

Secure & Private: Your data is sent to our server only to perform the conversion, then immediately discarded — nothing is logged or stored.
Input Stats Lines: 0 Words: 0 Chars: 0 Size: 0 KB
Output Stats Lines: 0 Words: 0 Chars: 0 Size: 0 KB
System Status: Ready

Preview

Input

Input statistics are shown in the status bar above.

Output

Output statistics are shown in the status bar above.

Frequently Asked Questions

Does this work with nested JSON?

Yes. Nested objects are flattened into columns like address.city, and arrays are handled per-row, so the resulting CSV still reflects the full structure.

Is there a file size limit?

Pasted input is capped at 5MB, which covers tens of thousands of typical JSON records. For larger files, split them into batches.

Does my data get uploaded anywhere?

The conversion itself runs on the server for parsing/building, but nothing is stored - your data is processed and returned in the same request, then discarded.

Accessibility Statement

Universal Data Converter PRO is committed to ensuring digital accessibility for users with disabilities. Our interface is designed to meet WCAG 2.1 Level AA standards.

Accessibility Features