OFFICE📊CSV ⇄ JSON

CSV ⇄ JSON: RFC 4180 + Auto-Detect Delimiter

Typical scenarios: ① turn table data returned by a third party (CSV) into JSON for your program; ② correctly parse Chinese CSV exported from a spreadsheet; ③ turn a JSON list into CSV to open in a spreadsheet app.

How to use: paste or upload CSV/JSON. The tool auto-detects the delimiter and encoding, completes the conversion, and lets you copy or download the result.

Notes: ① the first row is used as the header by default — set it manually if there isn't one; ② fields containing the delimiter are auto-wrapped in quotes, no manual work needed; ③ IDs that must keep leading zeros (e.g. postal codes, staff numbers) are kept as text and won't become numbers.