CSV to JSON Converter
Paste CSV or upload a file to get a JSON array. Quoted fields, embedded commas, and escaped quotes are handled properly. Everything runs in your browser — nothing is uploaded.
About this tool
Uses a real state-machine CSV parser rather than a naive split(","), so quoted fields containing commas, escaped double-quotes (""), and even newlines inside quotes all parse correctly — the cases that break most quick converters. The delimiter is auto-detected from the first row (comma, semicolon, tab, or pipe), and type inference optionally converts numeric strings, booleans, and empty values into proper JSON numbers, booleans, and nulls.
Your data never leaves the page — there is no server, no upload, and no tracking of tool inputs. Uploaded files are read locally with the browser's FileReader API.