JSON to CSV
Convert JSON arrays to CSV in your browser.
What this tool does
JSON to CSV turns a JSON array into comma-separated rows in your browser — useful for opening API data in a spreadsheet.
How to use
- Paste a JSON array of objects (or arrays) into the input box.
- Pick the delimiter you want.
- Click Convert to CSV and copy the result.
Notes
- Everything runs locally — your data is never uploaded.
- Columns come from the union of all object keys, in first-seen order.
Frequently asked questions
What JSON shapes are supported?
An array of objects (keys become columns) or an array of arrays (a plain matrix).
How are nested objects handled?
Nested objects and arrays are written as JSON text inside the cell, and cells are quoted when needed.
Is my data uploaded?
No. Conversion runs entirely in your browser.