CSV · Converter

CSV to JSON Converter

Convert CSV to JSON online. Transform spreadsheet tables into JSON arrays of objects with automatic type conversion and header mapping.

Interactive Editor

Header row

CSV Input

Ln 1, Col 1·0 lines · 0 B

Auto-executes on edit

JSON Output

0 lines · 0 B

100% In-Browser Privacy: All conversions, formatting, and validations run purely on your machine using client-side JavaScript. Your data, code snippets, and environment variables are never transmitted to any server or recorded in logs.

Specifications

How CSV → JSON Works

Parses CSV rows and header columns using PapaParse.
Converts rows into an array of JavaScript objects.
Parses numeric and boolean literals into native types.

Demonstration

Example Input & Output

Converts header row into JSON object keys, automatically parsing numeric and boolean values into native JSON data types.

CSV Input

id,name,age,active
101,Sandeep,25,true
102,Alex,30,false

JSON Output

[
  {
    "id": 101,
    "name": "Sandeep",
    "age": 25,
    "active": true
  },
  {
    "id": 102,
    "name": "Alex",
    "age": 30,
    "active": false
  }
]

Applications