CSV → JSON

Paste or upload CSV and convert to JSON. Choose delimiter, header row, trimming, and type inference. Everything runs in your browser.

Convert CSV to JSON

Client-side onlyFast & private

Delimiter

Auto guesses from first lines.

Structure

First row is header

Trim cells

Skip empty lines

Empty → null

Output

Mode

Objects or arrays

Indent

Pretty-print spaces

Type inference

Numbers, booleans ("true"/"false"), "null"

No inputReady to convert

Array<Object> • 2 spaces

[]