How to Convert CSV to JSON


JSON is the language of APIs and modern apps. This guide shows how a CSV file becomes a clean JSON array of objects.


What you get


Each CSV row becomes one JSON object, with keys from the header row:


name,age,city

Alice,30,Mumbai


becomes:


[

{ "name": "Alice", "age": "30", "city": "Mumbai" }

]


Why values are strings


CSV carries no type information. A column might look numeric but actually be a ZIP code (07001) or an ID with leading zeros. Guessing types is exactly how data gets silently corrupted, so this converter keeps every value as a string. That is predictable and lossless. If you need numbers or booleans, cast them in your own code after import, where you control the rules.


Quoting and special characters


Standard CSV quoting is handled: commas inside quotes stay in one field, doubled quotes ("") become a literal quote, and newlines inside quoted fields are preserved.


Common uses


  • Seeding a database or a test fixture from a spreadsheet
  • Feeding an API that expects JSON
  • Converting an export into a format a script can read

  • Tips


  • Make sure the first row is your headers; that becomes the object keys.
  • Use the Copy JSON button to paste straight into your editor or API client.