JSON to CSV Converter

Convert JSON to CSV Online

The JSON to CSV Converter transforms your JSON data into clean, well-structured CSV format instantly. Object keys are automatically mapped as column headers. Supports arrays of objects, nested structures, and large datasets.

Key Features

How to Use

What JSON Structure Works Best?

The converter works best with arrays of objects — each object becomes a row, and each key becomes a column header. A single object is converted to one row. Arrays of primitives produce a single "value" column.

// Best structure — array of objects:
[
  { "name": "Alice", "age": 30, "city": "NYC" },
  { "name": "Bob",   "age": 25, "city": "LA" }
]

// Result:
// name,age,city
// Alice,30,NYC
// Bob,25,LA

Handling Nested Objects

Nested objects and arrays are automatically stringified as JSON in the CSV cell. For example, {"address": {"city": "NYC"}} produces the cell value{"city":"NYC"}. If you need fully flattened output, flatten your JSON first.

Delimiter Options

By default, the output uses comma (,) as the delimiter. You can switch to pipe (|) or semicolon (;) using the Delimiter dropdown in the options panel. This is useful when your data itself contains commas. You can also toggle column headers on/off and switch between raw text and a table preview.

Common Use Cases

Frequently Asked Questions