JSON to CSV Converter – Convert JSON to CSV Online Free

Convert JSON to CSV Online

JSON to CSV conversion changes structured JSON data into a simple table of rows and columns. CSV is commonly used with Excel, Google Sheets, databases, reporting tools, and data analysis software.

This JSON to CSV converter is useful when you need to quickly transform API responses, JSON arrays, exported records, or other structured JSON data into a CSV file.

How to Convert JSON to CSV

JSON to CSV Example

For example, this JSON array contains two records:

[
  {
    "name": "John",
    "age": 30,
    "city": "New York"
  },
  {
    "name": "Sarah",
    "age": 28,
    "city": "London"
  }
]

The equivalent CSV output is:

name,age,city
John,30,New York
Sarah,28,London

Each JSON object becomes a CSV row, while the object properties become column headers.

Convert JSON File to CSV

JSON files are commonly used for API responses, application exports, configuration data, and database records. Converting JSON data to CSV makes it easier to work with spreadsheets and tabular data.

When converting a JSON file to CSV, the JSON structure needs to represent records that can be mapped into rows and columns. Nested properties may need to be flattened into separate CSV columns.

Convert JSON Array to CSV

A JSON array containing objects is one of the easiest structures to convert to CSV. Each object represents one record, and its properties become columns.

[
  { "id": 1, "name": "Alice" },
  { "id": 2, "name": "Bob" }
]

id,name
1,Alice
2,Bob

Convert Nested JSON to CSV

Nested JSON contains objects inside other objects. To represent this data in CSV, nested properties can be flattened into column names.

[
  {
    "id": 1,
    "user": {
      "name": "Alice",
      "address": {
        "city": "Mumbai",
        "zip": "400001"
      }
    }
  }
]

id,user.name,user.address.city,user.address.zip
1,Alice,Mumbai,400001

Flattening nested JSON makes structured API data easier to filter, sort, analyze, and import into spreadsheet software.

JSONL and NDJSON to CSV

JSONL, also called JSON Lines, and NDJSON store one JSON object per line. This format is often used for logs, data pipelines, API exports, and large datasets.

To convert JSONL or NDJSON to CSV, each JSON object can be treated as a record. The available properties can then be mapped into CSV columns.

Convert JSON to CSV with Python

Developers who need automated JSON to CSV conversion can use Python libraries such as pandas. For one-time conversions, the online converter above can be faster because it does not require a Python environment.

import pandas as pd

df = pd.read_json("data.json")

df.to_csv(
    "output.csv",
    index=False
)

For nested JSON structures, pandas.json_normalize() can be used to flatten nested records before exporting them to CSV.

JSON vs CSV: What's the Difference?

Common JSON to CSV Use Cases

Frequently Asked Questions