CSV to JSON Converter

What is CSV?

CSV (Comma-Separated Values) is a simple file format used to store tabular data, such as a spreadsheet or database. Files in the CSV format can be imported to and exported from most spreadsheet programs.

Features

• Custom Delimiters: Convert CSV using commas, semicolons, tabs, or pipe characters.
• Header Parsing: Automatically map keys to column headers if the first row contains headers.
• Smart Types: Optionally parse numbers and booleans rather than importing everything as text.
• Output Formats: Choose between a JSON array of objects or an array of arrays.
• 100% Client-Side: All parsing runs locally in your browser. Your data is never uploaded to any server.

CSV Input Example

id,name,active,score
1,John Doe,true,84.5
2,Jane Smith,false,91.2

JSON Output Example

[
  {
    "id": 1,
    "name": "John Doe",
    "active": true,
    "score": 84.5
  },
  {
    "id": 2,
    "name": "Jane Smith",
    "active": false,
    "score": 91.2
  }
]