CSV to JSON Converter

Convert CSV rows into JSON, with or without a header row.

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Frequently asked questions

Leading zeros, phone numbers, the text null and empty values stay strings. The first row can be a header or data.

Comma, semicolon, tab and pipe delimiters are supported. UTF-8 BOM and quoted line breaks are preserved.

Pretty-print, minify, and validate JSON with parse error feedback.

Convert JSON objects or arrays into spreadsheet-ready CSV output.

Clean duplicate lines from multi-line text with trimming and case options.