Noviilo

JSON to CSV

Runs locally

Convert an array of flat JSON objects into CSV, with a preview before you copy or download.

  • Free to use
  • No registration
  • Runs locally in your browser
  • Your data is never uploaded
0 / 5,000,000
CSV preview

Your data is processed locally in your browser and is not uploaded.

Learn more about this tool⌄

Example

An array of flat JSON objects to CSV

[{"name":"John","age":30},{"name":"Jane","age":25}]
name,age\nJohn,30\nJane,25

How it works

Object keys become CSV headers; nested objects and arrays are represented as JSON strings within their cell.

Common use cases

  • Exporting API data to a spreadsheet
  • Preparing data for import into other tools

Frequently asked questions

What happens to nested objects?
Deeply nested values are shown as their JSON string representation in the cell, since CSV has no native nesting.

We use optional analytics and advertising cookies. Tool inputs are never affected — see our cookie policy.