CSV to JSON Converter

CSV Quoted fields, embedded commas and line breaks inside quotes are all handled.

Delimiter

Output

First row holds the column names

Convert numbers, booleans and empty cells to JSON types

Trim whitespace around unquoted values

Skip completely blank rows

JSON

The parser follows RFC 4180: a doubled quote inside a quoted field is a literal quote, and a line break inside quotes stays part of the value. Detection picks whichever candidate delimiter gives the most consistent column count across the first few rows. Type conversion never touches quoted fields, so a postcode written as "01234" keeps its leading zero.