JSON to CSV

What this tool does

JSON to CSV: free online File tool with clear controls, private processing where supported and verifiable results.

Convert to CSV: text you paste into the page → the JSON to CSV result, which you can copy and download when the tool produces a file

Provide text you paste into the page.
Fill in JSON array or object.
Leave Flatten nested objects at its default "yes" or choose another value.
Press "Convert to CSV" and review the result in the panel on the right.
Download or copy the JSON to CSV result, which you can copy and download when the tool produces a file.

Flatten nested objects: Yes · No
Array handling: Expand top-level rows · JSON string · Join values · Use first value
Include header row: Yes · No
Output encoding: UTF-8 · UTF-8 with BOM · ISO-8859-1 · UTF-16 LE

JSON to CSV runs entirely in your browser: the input is not uploaded, so it never leaves your device.
Results depend on valid input and on the limits declared by each field above; this page does not promise a fixed processing time or file size.

Is my data uploaded when I use JSON to CSV?: No. This tool runs entirely in your browser, so the input stays on your device and is not uploaded.
Which input does it accept?: It works with text you paste into the page.
What do I get back?: After you press "Convert to CSV" the result panel shows the JSON to CSV result, which you can copy and download when the tool produces a file, which you can copy or download.
Can I change the settings?: Yes. The page exposes Flatten nested objects (Yes, No); Array handling (Expand top-level rows, JSON string, Join values, Use first value); Include header row (Yes, No); Output encoding (UTF-8, UTF-8 with BOM, ISO-8859-1, UTF-16 LE).