JSON to CSV converter

Paste a JSON array of objects and get clean CSV with a header row — nested objects are flattened, arrays are joined, quoting is handled. Preview and download. Nothing is uploaded.

JSON array of objects

Delimiter

Join arrays with

Include header row

Paste a JSON array of objects above to see the CSV preview.

Everything runs in your browser. No upload, no sign-up.

How it works

STEP 1

Paste your JSON

Drop in a JSON array of objects. Nested objects become dot-notation columns and arrays are joined into one cell.

STEP 2

Pick your options

Choose the delimiter (comma, semicolon or tab) and how arrays are joined. The preview updates as you type.

STEP 3

Download or copy

Preview the table, then download a ready-to-use .csv or copy the CSV text — nothing is uploaded.