CSV to JSON Converter

How to use the CSV to JSON Converter

1. Paste CSV text, or open or drop a .csv file on the left. The first row should hold the column names.
2. The delimiter is detected for you and the JSON appears on the right right away.
3. Choose objects or plain arrays, and whether numbers and true/false become real JSON values.
4. Copy the JSON or download it as a .json file.

Examples

sku,name,price,in_stock
TS-01,"T-shirt, blue",19.99,true
HD-07,Hoodie,49,false
CP-03,Cap,12.5,true

Name;City;Postcode
Lena Vogel;München;80331
Jonas Weber;Köln;50667

date	visits	signups
2024-05-01	1204	31
2024-05-02	998	27

About this tool

CSV is how most spreadsheets and exports share data, while JSON is what web apps, APIs and scripts want. This converter takes the first CSV row as field names and turns every following row into an object, giving you an array that can be dropped straight into code, a test fixture or a request body.

It understands quoted fields, so commas, quotes and even line breaks inside a cell are handled correctly. The delimiter is detected automatically, which means comma, semicolon, tab and pipe separated files all work without changing settings. Empty or duplicate column names get safe, unique keys instead of overwriting each other.

Tip: switch type conversion off when your data contains IDs, phone numbers or postcodes that must keep their exact text. With it on, plain numbers become numbers, but values with a leading zero are still kept as text so 0042 is never shortened to 42.