How to Convert CSV to JSON

CSV files are commonly used for bulk data imports or database backups. However, most modern web applications and APIs prefer working with JSON structures. Converting CSV files to JSON makes it easy to integrate tabular data into your application logic.

In this guide, we'll explain how to parse CSV text into structured JSON arrays.

Header Mapping

When parsing a CSV file, the first row usually acts as the header row. These header values are mapped directly to keys in our output JSON objects.

Input CSV:

"id","name","role"
"1","Alice","Admin"
"2","Bob","User"

Output JSON:

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

Handling Delimiters and Quotes

Standard CSV parsers handle text fields that contain commas or newline characters by wrapping them in double quotes. When converting, make sure your parser respects quotes to avoid splitting text fields incorrectly.