CSV to JSON Converter

How to Use the CSV to JSON Converter

1. Paste CSV data into the input box, including a header row.
2. Click "Convert" to generate a JSON array of objects.
3. Copy the JSON or download it as a .json file.

How the conversion works

The first row of the CSV is treated as the set of field names. Each subsequent row becomes one JSON object, with each column's value assigned to the matching field name from the header row. Quoted fields (to handle embedded commas) are parsed correctly.

Data type considerations

CSV values are plain text by nature. This converter attempts sensible type inference (turning "true"/"false" into booleans and numeric-looking values into numbers) since raw JSON with everything as strings is often less useful downstream, but review the output if your data has values that should intentionally remain as text, like a phone number or a ZIP code with a leading zero.

Example

name,age
Ada,30
Grace,41

[
  {"name":"Ada","age":30},
  {"name":"Grace","age":41}
]

Tips

• Make sure your CSV has a proper header row — the converter uses it directly as JSON keys.
• Watch for leading-zero values like ZIP codes that may be unintentionally converted to numbers.

Frequently Asked Questions