JSON to CSV

Converts a JSON array of flat objects to CSV. The header row is taken from the first object's keys; values that need it are quoted per standard CSV rules.

Private by architecture: All processing is 100% client-side memory. Your data never leaves this browser tab.

Direction

Delimiter

JSON input

0 lines · 0 charsJSON

CSV output

0 charsCSV

Example

[
  { "name": "Ada", "age": 30 },
  { "name": "Grace", "age": 28 }
]

produces:

name,age
Ada,30
Grace,28

FAQ

Can I convert CSV back to JSON?: Yes! Click the ⇌ swap button or toggle the Direction dropdown to convert CSV tables back into JSON arrays.
What if objects have different keys?: The header row is taken from the first object's keys only. Later objects contribute values for those same keys.
Can I open this in Excel?: Yes. The output is standard CSV and opens in Excel, Google Sheets, and Numbers.